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Finding the Fourth Proportional to 448,083.63, 672,125.45 and 132,515.93

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Solution

The fourth proportional to 448,083.63, 672,125.45 and 132,515.93 is: 198,773.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,083.63 : 672,125.45 = 132,515.93 : x
  2. Step 2: Convert to fraction form
    448,083.63/672,125.45 = 132,515.93/x
  3. Step 3: Cross multiply
    448,083.63x = 672,125.45 × 132,515.93
  4. Step 4: Simplify right side
    448,083.63x = 89,067,330,101.15
  5. Step 5: Solve for x
    x = 89,067,330,101.15/448,083.63
  6. Step 6: Final answer
    x = 198,773.90

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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.