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Finding the Fourth Proportional to 92,313.29, 138,414.57 and 42,330.77

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Solution

The fourth proportional to 92,313.29, 138,414.57 and 42,330.77 is: 63,470.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,313.29 : 138,414.57 = 42,330.77 : x
  2. Step 2: Convert to fraction form
    92,313.29/138,414.57 = 42,330.77/x
  3. Step 3: Cross multiply
    92,313.29x = 138,414.57 × 42,330.77
  4. Step 4: Simplify right side
    92,313.29x = 5,859,194,995.56
  5. Step 5: Solve for x
    x = 5,859,194,995.56/92,313.29
  6. Step 6: Final answer
    x = 63,470.77

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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.