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Finding the Fourth Proportional to 125,207.79, 187,812 and 36,463.47

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Solution

The fourth proportional to 125,207.79, 187,812 and 36,463.47 is: 54,695.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,207.79 : 187,812 = 36,463.47 : x
  2. Step 2: Convert to fraction form
    125,207.79/187,812 = 36,463.47/x
  3. Step 3: Cross multiply
    125,207.79x = 187,812 × 36,463.47
  4. Step 4: Simplify right side
    125,207.79x = 6,848,277,227.64
  5. Step 5: Solve for x
    x = 6,848,277,227.64/125,207.79
  6. Step 6: Final answer
    x = 54,695.30

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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.