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Finding the Fourth Proportional to 79,124.76, 118,605.13 and 49,474.51

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Solution

The fourth proportional to 79,124.76, 118,605.13 and 49,474.51 is: 74,160.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,124.76 : 118,605.13 = 49,474.51 : x
  2. Step 2: Convert to fraction form
    79,124.76/118,605.13 = 49,474.51/x
  3. Step 3: Cross multiply
    79,124.76x = 118,605.13 × 49,474.51
  4. Step 4: Simplify right side
    79,124.76x = 5,867,930,270.04
  5. Step 5: Solve for x
    x = 5,867,930,270.04/79,124.76
  6. Step 6: Final answer
    x = 74,160.48

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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.