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Finding the Fourth Proportional to 83,573.69, 124,491.92 and 79,046.51

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Solution

The fourth proportional to 83,573.69, 124,491.92 and 79,046.51 is: 117,748.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,573.69 : 124,491.92 = 79,046.51 : x
  2. Step 2: Convert to fraction form
    83,573.69/124,491.92 = 79,046.51/x
  3. Step 3: Cross multiply
    83,573.69x = 124,491.92 × 79,046.51
  4. Step 4: Simplify right side
    83,573.69x = 9,840,651,403.97
  5. Step 5: Solve for x
    x = 9,840,651,403.97/83,573.69
  6. Step 6: Final answer
    x = 117,748.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.