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Finding the Fourth Proportional to 104,497.74, 156,948.30 and 89,538.66

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Solution

The fourth proportional to 104,497.74, 156,948.30 and 89,538.66 is: 134,480.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,497.74 : 156,948.30 = 89,538.66 : x
  2. Step 2: Convert to fraction form
    104,497.74/156,948.30 = 89,538.66/x
  3. Step 3: Cross multiply
    104,497.74x = 156,948.30 × 89,538.66
  4. Step 4: Simplify right side
    104,497.74x = 14,052,940,471.28
  5. Step 5: Solve for x
    x = 14,052,940,471.28/104,497.74
  6. Step 6: Final answer
    x = 134,480.81

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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.