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Finding the Fourth Proportional to 252,041.01, 347,816.39 and 138,863.76

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Solution

The fourth proportional to 252,041.01, 347,816.39 and 138,863.76 is: 191,631.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,041.01 : 347,816.39 = 138,863.76 : x
  2. Step 2: Convert to fraction form
    252,041.01/347,816.39 = 138,863.76/x
  3. Step 3: Cross multiply
    252,041.01x = 347,816.39 × 138,863.76
  4. Step 4: Simplify right side
    252,041.01x = 48,299,091,010.71
  5. Step 5: Solve for x
    x = 48,299,091,010.71/252,041.01
  6. Step 6: Final answer
    x = 191,631.87

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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.