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Finding the Fourth Proportional to 162,008.40, 242,891.10 and 83,179.20

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Solution

The fourth proportional to 162,008.40, 242,891.10 and 83,179.20 is: 124,706.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,008.40 : 242,891.10 = 83,179.20 : x
  2. Step 2: Convert to fraction form
    162,008.40/242,891.10 = 83,179.20/x
  3. Step 3: Cross multiply
    162,008.40x = 242,891.10 × 83,179.20
  4. Step 4: Simplify right side
    162,008.40x = 20,203,487,385.12
  5. Step 5: Solve for x
    x = 20,203,487,385.12/162,008.40
  6. Step 6: Final answer
    x = 124,706.42

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1.5x scale

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.