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Finding the Fourth Proportional to 161,269.80, 241,904.70 and 143,452.20

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Solution

The fourth proportional to 161,269.80, 241,904.70 and 143,452.20 is: 215,178.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,269.80 : 241,904.70 = 143,452.20 : x
  2. Step 2: Convert to fraction form
    161,269.80/241,904.70 = 143,452.20/x
  3. Step 3: Cross multiply
    161,269.80x = 241,904.70 × 143,452.20
  4. Step 4: Simplify right side
    161,269.80x = 34,701,761,405.34
  5. Step 5: Solve for x
    x = 34,701,761,405.34/161,269.80
  6. Step 6: Final answer
    x = 215,178.30

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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.