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Finding the Fourth Proportional to 162,811.80, 244,217.70 and 112,948.20

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Solution

The fourth proportional to 162,811.80, 244,217.70 and 112,948.20 is: 169,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,811.80 : 244,217.70 = 112,948.20 : x
  2. Step 2: Convert to fraction form
    162,811.80/244,217.70 = 112,948.20/x
  3. Step 3: Cross multiply
    162,811.80x = 244,217.70 × 112,948.20
  4. Step 4: Simplify right side
    162,811.80x = 27,583,949,623.14
  5. Step 5: Solve for x
    x = 27,583,949,623.14/162,811.80
  6. Step 6: Final answer
    x = 169,422.30

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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.