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Finding the Fourth Proportional to 92,614.86, 138,770.41 and 39,264.21

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Solution

The fourth proportional to 92,614.86, 138,770.41 and 39,264.21 is: 58,831.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,614.86 : 138,770.41 = 39,264.21 : x
  2. Step 2: Convert to fraction form
    92,614.86/138,770.41 = 39,264.21/x
  3. Step 3: Cross multiply
    92,614.86x = 138,770.41 × 39,264.21
  4. Step 4: Simplify right side
    92,614.86x = 5,448,710,520.03
  5. Step 5: Solve for x
    x = 5,448,710,520.03/92,614.86
  6. Step 6: Final answer
    x = 58,831.93

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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.