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Finding the Fourth Proportional to 80,712.56, 111,381.80 and 44,902.46

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Solution

The fourth proportional to 80,712.56, 111,381.80 and 44,902.46 is: 61,964.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,712.56 : 111,381.80 = 44,902.46 : x
  2. Step 2: Convert to fraction form
    80,712.56/111,381.80 = 44,902.46/x
  3. Step 3: Cross multiply
    80,712.56x = 111,381.80 × 44,902.46
  4. Step 4: Simplify right side
    80,712.56x = 5,001,316,819.23
  5. Step 5: Solve for x
    x = 5,001,316,819.23/80,712.56
  6. Step 6: Final answer
    x = 61,964.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.