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Finding the Fourth Proportional to 125,757.98, 173,547.18 and 68,397.86

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Solution

The fourth proportional to 125,757.98, 173,547.18 and 68,397.86 is: 94,389.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,757.98 : 173,547.18 = 68,397.86 : x
  2. Step 2: Convert to fraction form
    125,757.98/173,547.18 = 68,397.86/x
  3. Step 3: Cross multiply
    125,757.98x = 173,547.18 × 68,397.86
  4. Step 4: Simplify right side
    125,757.98x = 11,870,255,721.03
  5. Step 5: Solve for x
    x = 11,870,255,721.03/125,757.98
  6. Step 6: Final answer
    x = 94,389.68

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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.