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Finding the Fourth Proportional to 283,695.18, 425,605.04 and 84,031.20

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Solution

The fourth proportional to 283,695.18, 425,605.04 and 84,031.20 is: 126,065.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,695.18 : 425,605.04 = 84,031.20 : x
  2. Step 2: Convert to fraction form
    283,695.18/425,605.04 = 84,031.20/x
  3. Step 3: Cross multiply
    283,695.18x = 425,605.04 × 84,031.20
  4. Step 4: Simplify right side
    283,695.18x = 35,764,102,237.25
  5. Step 5: Solve for x
    x = 35,764,102,237.25/283,695.18
  6. Step 6: Final answer
    x = 126,065.24

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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.