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Finding the Fourth Proportional to 79,549.95, 119,543.63 and 74,348.53

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Solution

The fourth proportional to 79,549.95, 119,543.63 and 74,348.53 is: 111,727.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,549.95 : 119,543.63 = 74,348.53 : x
  2. Step 2: Convert to fraction form
    79,549.95/119,543.63 = 74,348.53/x
  3. Step 3: Cross multiply
    79,549.95x = 119,543.63 × 74,348.53
  4. Step 4: Simplify right side
    79,549.95x = 8,887,893,161.36
  5. Step 5: Solve for x
    x = 8,887,893,161.36/79,549.95
  6. Step 6: Final answer
    x = 111,727.20

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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.