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Finding the Fourth Proportional to 125,193.87, 172,766.06 and 67,832.07

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Solution

The fourth proportional to 125,193.87, 172,766.06 and 67,832.07 is: 93,607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,193.87 : 172,766.06 = 67,832.07 : x
  2. Step 2: Convert to fraction form
    125,193.87/172,766.06 = 67,832.07/x
  3. Step 3: Cross multiply
    125,193.87x = 172,766.06 × 67,832.07
  4. Step 4: Simplify right side
    125,193.87x = 11,719,078,781.29
  5. Step 5: Solve for x
    x = 11,719,078,781.29/125,193.87
  6. Step 6: Final answer
    x = 93,607.45

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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.