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Finding the Fourth Proportional to 162,343.20, 243,514.80 and 73,769.70

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Solution

The fourth proportional to 162,343.20, 243,514.80 and 73,769.70 is: 110,654.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,343.20 : 243,514.80 = 73,769.70 : x
  2. Step 2: Convert to fraction form
    162,343.20/243,514.80 = 73,769.70/x
  3. Step 3: Cross multiply
    162,343.20x = 243,514.80 × 73,769.70
  4. Step 4: Simplify right side
    162,343.20x = 17,964,013,741.56
  5. Step 5: Solve for x
    x = 17,964,013,741.56/162,343.20
  6. Step 6: Final answer
    x = 110,654.55

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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.