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Finding the Fourth Proportional to 125,066.28, 187,551.57 and 61,864.71

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Solution

The fourth proportional to 125,066.28, 187,551.57 and 61,864.71 is: 92,773.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,066.28 : 187,551.57 = 61,864.71 : x
  2. Step 2: Convert to fraction form
    125,066.28/187,551.57 = 61,864.71/x
  3. Step 3: Cross multiply
    125,066.28x = 187,551.57 × 61,864.71
  4. Step 4: Simplify right side
    125,066.28x = 11,602,823,488.09
  5. Step 5: Solve for x
    x = 11,602,823,488.09/125,066.28
  6. Step 6: Final answer
    x = 92,773.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.