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Finding the Fourth Proportional to 142,757.67, 197,218.88 and 93,815.04

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Solution

The fourth proportional to 142,757.67, 197,218.88 and 93,815.04 is: 129,604.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,757.67 : 197,218.88 = 93,815.04 : x
  2. Step 2: Convert to fraction form
    142,757.67/197,218.88 = 93,815.04/x
  3. Step 3: Cross multiply
    142,757.67x = 197,218.88 × 93,815.04
  4. Step 4: Simplify right side
    142,757.67x = 18,502,097,115.96
  5. Step 5: Solve for x
    x = 18,502,097,115.96/142,757.67
  6. Step 6: Final answer
    x = 129,604.93

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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.