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Finding the Fourth Proportional to 442,032.80, 663,049.20 and 161,751.20

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Solution

The fourth proportional to 442,032.80, 663,049.20 and 161,751.20 is: 242,626.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,032.80 : 663,049.20 = 161,751.20 : x
  2. Step 2: Convert to fraction form
    442,032.80/663,049.20 = 161,751.20/x
  3. Step 3: Cross multiply
    442,032.80x = 663,049.20 × 161,751.20
  4. Step 4: Simplify right side
    442,032.80x = 107,249,003,759.04
  5. Step 5: Solve for x
    x = 107,249,003,759.04/442,032.80
  6. Step 6: Final answer
    x = 242,626.80

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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.