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Finding the Fourth Proportional to 136,068.40, 204,073.44 and 42,562

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Solution

The fourth proportional to 136,068.40, 204,073.44 and 42,562 is: 63,833.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,068.40 : 204,073.44 = 42,562 : x
  2. Step 2: Convert to fraction form
    136,068.40/204,073.44 = 42,562/x
  3. Step 3: Cross multiply
    136,068.40x = 204,073.44 × 42,562
  4. Step 4: Simplify right side
    136,068.40x = 8,685,773,753.28
  5. Step 5: Solve for x
    x = 8,685,773,753.28/136,068.40
  6. Step 6: Final answer
    x = 63,833.88

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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.