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Finding the Fourth Proportional to 127,937.50, 176,553.25 and 70,580.40

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Solution

The fourth proportional to 127,937.50, 176,553.25 and 70,580.40 is: 97,400.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,937.50 : 176,553.25 = 70,580.40 : x
  2. Step 2: Convert to fraction form
    127,937.50/176,553.25 = 70,580.40/x
  3. Step 3: Cross multiply
    127,937.50x = 176,553.25 × 70,580.40
  4. Step 4: Simplify right side
    127,937.50x = 12,461,198,392.55
  5. Step 5: Solve for x
    x = 12,461,198,392.55/127,937.50
  6. Step 6: Final answer
    x = 97,400.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.