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Finding the Fourth Proportional to 147,773.80, 221,660.70 and 88,676.20

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Solution

The fourth proportional to 147,773.80, 221,660.70 and 88,676.20 is: 133,014.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,773.80 : 221,660.70 = 88,676.20 : x
  2. Step 2: Convert to fraction form
    147,773.80/221,660.70 = 88,676.20/x
  3. Step 3: Cross multiply
    147,773.80x = 221,660.70 × 88,676.20
  4. Step 4: Simplify right side
    147,773.80x = 19,656,028,565.34
  5. Step 5: Solve for x
    x = 19,656,028,565.34/147,773.80
  6. Step 6: Final answer
    x = 133,014.30

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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.