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Finding the Fourth Proportional to 576,419.14, 864,626.82 and 155,695.15

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Solution

The fourth proportional to 576,419.14, 864,626.82 and 155,695.15 is: 233,542.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,419.14 : 864,626.82 = 155,695.15 : x
  2. Step 2: Convert to fraction form
    576,419.14/864,626.82 = 155,695.15/x
  3. Step 3: Cross multiply
    576,419.14x = 864,626.82 × 155,695.15
  4. Step 4: Simplify right side
    576,419.14x = 134,618,202,433.92
  5. Step 5: Solve for x
    x = 134,618,202,433.92/576,419.14
  6. Step 6: Final answer
    x = 233,542.21

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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.