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Finding the Fourth Proportional to 168,463.98, 252,694.95 and 42,103.59

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Solution

The fourth proportional to 168,463.98, 252,694.95 and 42,103.59 is: 63,155.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,463.98 : 252,694.95 = 42,103.59 : x
  2. Step 2: Convert to fraction form
    168,463.98/252,694.95 = 42,103.59/x
  3. Step 3: Cross multiply
    168,463.98x = 252,694.95 × 42,103.59
  4. Step 4: Simplify right side
    168,463.98x = 10,639,364,569.87
  5. Step 5: Solve for x
    x = 10,639,364,569.87/168,463.98
  6. Step 6: Final answer
    x = 63,155.13

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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.