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Finding the Fourth Proportional to 125,244.28, 172,837.12 and 68,654.44

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Solution

The fourth proportional to 125,244.28, 172,837.12 and 68,654.44 is: 94,743.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,244.28 : 172,837.12 = 68,654.44 : x
  2. Step 2: Convert to fraction form
    125,244.28/172,837.12 = 68,654.44/x
  3. Step 3: Cross multiply
    125,244.28x = 172,837.12 × 68,654.44
  4. Step 4: Simplify right side
    125,244.28x = 11,866,035,684.81
  5. Step 5: Solve for x
    x = 11,866,035,684.81/125,244.28
  6. Step 6: Final answer
    x = 94,743.13

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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.