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Finding the Fourth Proportional to 147,703.20, 221,425.20 and 88,562.40

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Solution

The fourth proportional to 147,703.20, 221,425.20 and 88,562.40 is: 132,765.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,703.20 : 221,425.20 = 88,562.40 : x
  2. Step 2: Convert to fraction form
    147,703.20/221,425.20 = 88,562.40/x
  3. Step 3: Cross multiply
    147,703.20x = 221,425.20 × 88,562.40
  4. Step 4: Simplify right side
    147,703.20x = 19,609,947,132.48
  5. Step 5: Solve for x
    x = 19,609,947,132.48/147,703.20
  6. Step 6: Final answer
    x = 132,765.89

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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.