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Finding the Fourth Proportional to 73,218.80, 101,047.08 and 41,387.96

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Solution

The fourth proportional to 73,218.80, 101,047.08 and 41,387.96 is: 57,118.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,218.80 : 101,047.08 = 41,387.96 : x
  2. Step 2: Convert to fraction form
    73,218.80/101,047.08 = 41,387.96/x
  3. Step 3: Cross multiply
    73,218.80x = 101,047.08 × 41,387.96
  4. Step 4: Simplify right side
    73,218.80x = 4,182,132,505.16
  5. Step 5: Solve for x
    x = 4,182,132,505.16/73,218.80
  6. Step 6: Final answer
    x = 57,118.29

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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.