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Finding the Fourth Proportional to 125,487.93, 173,173.65 and 68,902.95

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Solution

The fourth proportional to 125,487.93, 173,173.65 and 68,902.95 is: 95,086.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,487.93 : 173,173.65 = 68,902.95 : x
  2. Step 2: Convert to fraction form
    125,487.93/173,173.65 = 68,902.95/x
  3. Step 3: Cross multiply
    125,487.93x = 173,173.65 × 68,902.95
  4. Step 4: Simplify right side
    125,487.93x = 11,932,175,347.27
  5. Step 5: Solve for x
    x = 11,932,175,347.27/125,487.93
  6. Step 6: Final answer
    x = 95,086.24

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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.