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Finding the Fourth Proportional to 121,677.80, 182,514.54 and 62,478.68

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Solution

The fourth proportional to 121,677.80, 182,514.54 and 62,478.68 is: 93,716.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,677.80 : 182,514.54 = 62,478.68 : x
  2. Step 2: Convert to fraction form
    121,677.80/182,514.54 = 62,478.68/x
  3. Step 3: Cross multiply
    121,677.80x = 182,514.54 × 62,478.68
  4. Step 4: Simplify right side
    121,677.80x = 11,403,267,540.01
  5. Step 5: Solve for x
    x = 11,403,267,540.01/121,677.80
  6. Step 6: Final answer
    x = 93,716.91

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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.