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Finding the Fourth Proportional to 161,251.20, 241,948.80 and 56,145.60

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Solution

The fourth proportional to 161,251.20, 241,948.80 and 56,145.60 is: 84,243.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,251.20 : 241,948.80 = 56,145.60 : x
  2. Step 2: Convert to fraction form
    161,251.20/241,948.80 = 56,145.60/x
  3. Step 3: Cross multiply
    161,251.20x = 241,948.80 × 56,145.60
  4. Step 4: Simplify right side
    161,251.20x = 13,584,360,545.28
  5. Step 5: Solve for x
    x = 13,584,360,545.28/161,251.20
  6. Step 6: Final answer
    x = 84,243.47

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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.