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Finding the Fourth Proportional to 98,034.56, 135,251.04 and 57,723.68

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Solution

The fourth proportional to 98,034.56, 135,251.04 and 57,723.68 is: 79,637.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,034.56 : 135,251.04 = 57,723.68 : x
  2. Step 2: Convert to fraction form
    98,034.56/135,251.04 = 57,723.68/x
  3. Step 3: Cross multiply
    98,034.56x = 135,251.04 × 57,723.68
  4. Step 4: Simplify right side
    98,034.56x = 7,807,187,752.63
  5. Step 5: Solve for x
    x = 7,807,187,752.63/98,034.56
  6. Step 6: Final answer
    x = 79,637.10

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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.