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Finding the Fourth Proportional to 159,149.60, 219,631.05 and 87,534.22

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Solution

The fourth proportional to 159,149.60, 219,631.05 and 87,534.22 is: 120,799.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,149.60 : 219,631.05 = 87,534.22 : x
  2. Step 2: Convert to fraction form
    159,149.60/219,631.05 = 87,534.22/x
  3. Step 3: Cross multiply
    159,149.60x = 219,631.05 × 87,534.22
  4. Step 4: Simplify right side
    159,149.60x = 19,225,232,649.53
  5. Step 5: Solve for x
    x = 19,225,232,649.53/159,149.60
  6. Step 6: Final answer
    x = 120,799.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.