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Finding the Fourth Proportional to 442,197.16, 663,293.22 and 126,654.16

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Solution

The fourth proportional to 442,197.16, 663,293.22 and 126,654.16 is: 189,980.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,197.16 : 663,293.22 = 126,654.16 : x
  2. Step 2: Convert to fraction form
    442,197.16/663,293.22 = 126,654.16/x
  3. Step 3: Cross multiply
    442,197.16x = 663,293.22 × 126,654.16
  4. Step 4: Simplify right side
    442,197.16x = 84,008,845,612.80
  5. Step 5: Solve for x
    x = 84,008,845,612.80/442,197.16
  6. Step 6: Final answer
    x = 189,980.52

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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.