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Finding the Fourth Proportional to 448,587.52, 672,691.20 and 167,909.12

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Solution

The fourth proportional to 448,587.52, 672,691.20 and 167,909.12 is: 251,792.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,587.52 : 672,691.20 = 167,909.12 : x
  2. Step 2: Convert to fraction form
    448,587.52/672,691.20 = 167,909.12/x
  3. Step 3: Cross multiply
    448,587.52x = 672,691.20 × 167,909.12
  4. Step 4: Simplify right side
    448,587.52x = 112,950,987,423.74
  5. Step 5: Solve for x
    x = 112,950,987,423.74/448,587.52
  6. Step 6: Final answer
    x = 251,792.53

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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.