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Finding the Fourth Proportional to 448,083.13, 672,124.71 and 132,515.47

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Solution

The fourth proportional to 448,083.13, 672,124.71 and 132,515.47 is: 198,773.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,083.13 : 672,124.71 = 132,515.47 : x
  2. Step 2: Convert to fraction form
    448,083.13/672,124.71 = 132,515.47/x
  3. Step 3: Cross multiply
    448,083.13x = 672,124.71 × 132,515.47
  4. Step 4: Simplify right side
    448,083.13x = 89,066,921,844.26
  5. Step 5: Solve for x
    x = 89,066,921,844.26/448,083.13
  6. Step 6: Final answer
    x = 198,773.21

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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.