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Finding the Fourth Proportional to 92,807.28, 139,220.76 and 29,632.56

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Solution

The fourth proportional to 92,807.28, 139,220.76 and 29,632.56 is: 44,451.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,807.28 : 139,220.76 = 29,632.56 : x
  2. Step 2: Convert to fraction form
    92,807.28/139,220.76 = 29,632.56/x
  3. Step 3: Cross multiply
    92,807.28x = 139,220.76 × 29,632.56
  4. Step 4: Simplify right side
    92,807.28x = 4,125,467,523.95
  5. Step 5: Solve for x
    x = 4,125,467,523.95/92,807.28
  6. Step 6: Final answer
    x = 44,451.98

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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.