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Finding the Fourth Proportional to 73,843.32, 101,902.48 and 42,011.54

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Solution

The fourth proportional to 73,843.32, 101,902.48 and 42,011.54 is: 57,975.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,843.32 : 101,902.48 = 42,011.54 : x
  2. Step 2: Convert to fraction form
    73,843.32/101,902.48 = 42,011.54/x
  3. Step 3: Cross multiply
    73,843.32x = 101,902.48 × 42,011.54
  4. Step 4: Simplify right side
    73,843.32x = 4,281,079,500.08
  5. Step 5: Solve for x
    x = 4,281,079,500.08/73,843.32
  6. Step 6: Final answer
    x = 57,975.18

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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.