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Finding the Fourth Proportional to 92,363.28, 138,318.12 and 58,984.80

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Solution

The fourth proportional to 92,363.28, 138,318.12 and 58,984.80 is: 88,332.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,363.28 : 138,318.12 = 58,984.80 : x
  2. Step 2: Convert to fraction form
    92,363.28/138,318.12 = 58,984.80/x
  3. Step 3: Cross multiply
    92,363.28x = 138,318.12 × 58,984.80
  4. Step 4: Simplify right side
    92,363.28x = 8,158,666,644.58
  5. Step 5: Solve for x
    x = 8,158,666,644.58/92,363.28
  6. Step 6: Final answer
    x = 88,332.36

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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.