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Finding the Fourth Proportional to 157,359.60, 217,157.22 and 93,700.08

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Solution

The fourth proportional to 157,359.60, 217,157.22 and 93,700.08 is: 129,306.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,359.60 : 217,157.22 = 93,700.08 : x
  2. Step 2: Convert to fraction form
    157,359.60/217,157.22 = 93,700.08/x
  3. Step 3: Cross multiply
    157,359.60x = 217,157.22 × 93,700.08
  4. Step 4: Simplify right side
    157,359.60x = 20,347,648,886.58
  5. Step 5: Solve for x
    x = 20,347,648,886.58/157,359.60
  6. Step 6: Final answer
    x = 129,306.69

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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.