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Finding the Fourth Proportional to 79,061.80, 118,360.14 and 49,389.70

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Solution

The fourth proportional to 79,061.80, 118,360.14 and 49,389.70 is: 73,939.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,061.80 : 118,360.14 = 49,389.70 : x
  2. Step 2: Convert to fraction form
    79,061.80/118,360.14 = 49,389.70/x
  3. Step 3: Cross multiply
    79,061.80x = 118,360.14 × 49,389.70
  4. Step 4: Simplify right side
    79,061.80x = 5,845,771,806.56
  5. Step 5: Solve for x
    x = 5,845,771,806.56/79,061.80
  6. Step 6: Final answer
    x = 73,939.27

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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.