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Finding the Fourth Proportional to 125,057.17, 172,616.43 and 108,241.93

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Solution

The fourth proportional to 125,057.17, 172,616.43 and 108,241.93 is: 149,406.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,057.17 : 172,616.43 = 108,241.93 : x
  2. Step 2: Convert to fraction form
    125,057.17/172,616.43 = 108,241.93/x
  3. Step 3: Cross multiply
    125,057.17x = 172,616.43 × 108,241.93
  4. Step 4: Simplify right side
    125,057.17x = 18,684,335,532.91
  5. Step 5: Solve for x
    x = 18,684,335,532.91/125,057.17
  6. Step 6: Final answer
    x = 149,406.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.