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Finding the Fourth Proportional to 86,920,416,000.45, 130,380,624,000.67 and 86,920,416,000.45

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Solution

The fourth proportional to 86,920,416,000.45, 130,380,624,000.67 and 86,920,416,000.45 is: 130,380,624,000.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,920,416,000.45 : 130,380,624,000.67 = 86,920,416,000.45 : x
  2. Step 2: Convert to fraction form
    86,920,416,000.45/130,380,624,000.67 = 86,920,416,000.45/x
  3. Step 3: Cross multiply
    86,920,416,000.45x = 130,380,624,000.67 × 86,920,416,000.45
  4. Step 4: Simplify right side
    86,920,416,000.45x = 11,332,738,076,536,490,426,368
  5. Step 5: Solve for x
    x = 11,332,738,076,536,490,426,368/86,920,416,000.45
  6. Step 6: Final answer
    x = 130,380,624,000.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.