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Finding the Fourth Proportional to 234,614.64, 323,760.33 and 139,064.61

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Solution

The fourth proportional to 234,614.64, 323,760.33 and 139,064.61 is: 191,904.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,614.64 : 323,760.33 = 139,064.61 : x
  2. Step 2: Convert to fraction form
    234,614.64/323,760.33 = 139,064.61/x
  3. Step 3: Cross multiply
    234,614.64x = 323,760.33 × 139,064.61
  4. Step 4: Simplify right side
    234,614.64x = 45,023,604,024.92
  5. Step 5: Solve for x
    x = 45,023,604,024.92/234,614.64
  6. Step 6: Final answer
    x = 191,904.50

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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.