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Finding the Fourth Proportional to 162,449.20, 243,690.08 and 55,819.11

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Solution

The fourth proportional to 162,449.20, 243,690.08 and 55,819.11 is: 83,734.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,449.20 : 243,690.08 = 55,819.11 : x
  2. Step 2: Convert to fraction form
    162,449.20/243,690.08 = 55,819.11/x
  3. Step 3: Cross multiply
    162,449.20x = 243,690.08 × 55,819.11
  4. Step 4: Simplify right side
    162,449.20x = 13,602,563,381.43
  5. Step 5: Solve for x
    x = 13,602,563,381.43/162,449.20
  6. Step 6: Final answer
    x = 83,734.26

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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.