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Finding the Fourth Proportional to 69,123.52, 95,356.32 and 43,981.12

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Solution

The fourth proportional to 69,123.52, 95,356.32 and 43,981.12 is: 60,672.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,123.52 : 95,356.32 = 43,981.12 : x
  2. Step 2: Convert to fraction form
    69,123.52/95,356.32 = 43,981.12/x
  3. Step 3: Cross multiply
    69,123.52x = 95,356.32 × 43,981.12
  4. Step 4: Simplify right side
    69,123.52x = 4,193,877,752.68
  5. Step 5: Solve for x
    x = 4,193,877,752.68/69,123.52
  6. Step 6: Final answer
    x = 60,672.22

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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.