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Finding the Fourth Proportional to 250,521.66, 375,778.17 and 84,309.66

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Solution

The fourth proportional to 250,521.66, 375,778.17 and 84,309.66 is: 126,463.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,521.66 : 375,778.17 = 84,309.66 : x
  2. Step 2: Convert to fraction form
    250,521.66/375,778.17 = 84,309.66/x
  3. Step 3: Cross multiply
    250,521.66x = 375,778.17 × 84,309.66
  4. Step 4: Simplify right side
    250,521.66x = 31,681,729,748.12
  5. Step 5: Solve for x
    x = 31,681,729,748.12/250,521.66
  6. Step 6: Final answer
    x = 126,463.04

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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.