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Finding the Fourth Proportional to 147,061.20, 220,859.10 and 88,012.20

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Solution

The fourth proportional to 147,061.20, 220,859.10 and 88,012.20 is: 132,178.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,061.20 : 220,859.10 = 88,012.20 : x
  2. Step 2: Convert to fraction form
    147,061.20/220,859.10 = 88,012.20/x
  3. Step 3: Cross multiply
    147,061.20x = 220,859.10 × 88,012.20
  4. Step 4: Simplify right side
    147,061.20x = 19,438,295,281.02
  5. Step 5: Solve for x
    x = 19,438,295,281.02/147,061.20
  6. Step 6: Final answer
    x = 132,178.27

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1.5x scale

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.