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Finding the Fourth Proportional to 113,382.56, 156,451.42 and 68,050.92

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Solution

The fourth proportional to 113,382.56, 156,451.42 and 68,050.92 is: 93,900.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,382.56 : 156,451.42 = 68,050.92 : x
  2. Step 2: Convert to fraction form
    113,382.56/156,451.42 = 68,050.92/x
  3. Step 3: Cross multiply
    113,382.56x = 156,451.42 × 68,050.92
  4. Step 4: Simplify right side
    113,382.56x = 10,646,663,066.31
  5. Step 5: Solve for x
    x = 10,646,663,066.31/113,382.56
  6. Step 6: Final answer
    x = 93,900.36

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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.