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Finding the Fourth Proportional to 125,224.98, 172,810.97 and 67,864.42

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Solution

The fourth proportional to 125,224.98, 172,810.97 and 67,864.42 is: 93,653.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,224.98 : 172,810.97 = 67,864.42 : x
  2. Step 2: Convert to fraction form
    125,224.98/172,810.97 = 67,864.42/x
  3. Step 3: Cross multiply
    125,224.98x = 172,810.97 × 67,864.42
  4. Step 4: Simplify right side
    125,224.98x = 11,727,716,248.69
  5. Step 5: Solve for x
    x = 11,727,716,248.69/125,224.98
  6. Step 6: Final answer
    x = 93,653.17

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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.