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Finding the Fourth Proportional to 162,959.90, 244,549.20 and 74,167.70

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Solution

The fourth proportional to 162,959.90, 244,549.20 and 74,167.70 is: 111,301.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,959.90 : 244,549.20 = 74,167.70 : x
  2. Step 2: Convert to fraction form
    162,959.90/244,549.20 = 74,167.70/x
  3. Step 3: Cross multiply
    162,959.90x = 244,549.20 × 74,167.70
  4. Step 4: Simplify right side
    162,959.90x = 18,137,651,700.84
  5. Step 5: Solve for x
    x = 18,137,651,700.84/162,959.90
  6. Step 6: Final answer
    x = 111,301.32

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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.