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Finding the Fourth Proportional to 147,064.20, 220,863.60 and 88,015.20

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Solution

The fourth proportional to 147,064.20, 220,863.60 and 88,015.20 is: 132,182.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,064.20 : 220,863.60 = 88,015.20 : x
  2. Step 2: Convert to fraction form
    147,064.20/220,863.60 = 88,015.20/x
  3. Step 3: Cross multiply
    147,064.20x = 220,863.60 × 88,015.20
  4. Step 4: Simplify right side
    147,064.20x = 19,439,353,926.72
  5. Step 5: Solve for x
    x = 19,439,353,926.72/147,064.20
  6. Step 6: Final answer
    x = 132,182.77

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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.