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Finding the Fourth Proportional to 448,407.29, 672,613.36 and 132,866.93

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Solution

The fourth proportional to 448,407.29, 672,613.36 and 132,866.93 is: 199,301.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,407.29 : 672,613.36 = 132,866.93 : x
  2. Step 2: Convert to fraction form
    448,407.29/672,613.36 = 132,866.93/x
  3. Step 3: Cross multiply
    448,407.29x = 672,613.36 × 132,866.93
  4. Step 4: Simplify right side
    448,407.29x = 89,368,068,524.95
  5. Step 5: Solve for x
    x = 89,368,068,524.95/448,407.29
  6. Step 6: Final answer
    x = 199,301.11

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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.