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Finding the Fourth Proportional to 72,562.48, 100,054.92 and 45,672

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Solution

The fourth proportional to 72,562.48, 100,054.92 and 45,672 is: 62,976.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,562.48 : 100,054.92 = 45,672 : x
  2. Step 2: Convert to fraction form
    72,562.48/100,054.92 = 45,672/x
  3. Step 3: Cross multiply
    72,562.48x = 100,054.92 × 45,672
  4. Step 4: Simplify right side
    72,562.48x = 4,569,708,306.24
  5. Step 5: Solve for x
    x = 4,569,708,306.24/72,562.48
  6. Step 6: Final answer
    x = 62,976.19

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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.