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Finding the Fourth Proportional to 117,635.20, 176,222.40 and 70,748.80

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Solution

The fourth proportional to 117,635.20, 176,222.40 and 70,748.80 is: 105,984.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,635.20 : 176,222.40 = 70,748.80 : x
  2. Step 2: Convert to fraction form
    117,635.20/176,222.40 = 70,748.80/x
  3. Step 3: Cross multiply
    117,635.20x = 176,222.40 × 70,748.80
  4. Step 4: Simplify right side
    117,635.20x = 12,467,523,333.12
  5. Step 5: Solve for x
    x = 12,467,523,333.12/117,635.20
  6. Step 6: Final answer
    x = 105,984.63

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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.