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Finding the Fourth Proportional to 161,177.20, 241,764.54 and 42,856.90

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Solution

The fourth proportional to 161,177.20, 241,764.54 and 42,856.90 is: 64,285.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,177.20 : 241,764.54 = 42,856.90 : x
  2. Step 2: Convert to fraction form
    161,177.20/241,764.54 = 42,856.90/x
  3. Step 3: Cross multiply
    161,177.20x = 241,764.54 × 42,856.90
  4. Step 4: Simplify right side
    161,177.20x = 10,361,278,714.33
  5. Step 5: Solve for x
    x = 10,361,278,714.33/161,177.20
  6. Step 6: Final answer
    x = 64,285.01

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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.