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Finding the Fourth Proportional to 117,729.20, 176,593.80 and 38,855.60

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Solution

The fourth proportional to 117,729.20, 176,593.80 and 38,855.60 is: 58,283.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,729.20 : 176,593.80 = 38,855.60 : x
  2. Step 2: Convert to fraction form
    117,729.20/176,593.80 = 38,855.60/x
  3. Step 3: Cross multiply
    117,729.20x = 176,593.80 × 38,855.60
  4. Step 4: Simplify right side
    117,729.20x = 6,861,658,055.28
  5. Step 5: Solve for x
    x = 6,861,658,055.28/117,729.20
  6. Step 6: Final answer
    x = 58,283.40

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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.