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Finding the Fourth Proportional to 125,097.38, 172,634.70 and 67,737.38

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Solution

The fourth proportional to 125,097.38, 172,634.70 and 67,737.38 is: 93,477.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,097.38 : 172,634.70 = 67,737.38 : x
  2. Step 2: Convert to fraction form
    125,097.38/172,634.70 = 67,737.38/x
  3. Step 3: Cross multiply
    125,097.38x = 172,634.70 × 67,737.38
  4. Step 4: Simplify right side
    125,097.38x = 11,693,821,411.91
  5. Step 5: Solve for x
    x = 11,693,821,411.91/125,097.38
  6. Step 6: Final answer
    x = 93,477.75

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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.