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Finding the Fourth Proportional to 69,939.97, 105,001.41 and 41,528.80

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Solution

The fourth proportional to 69,939.97, 105,001.41 and 41,528.80 is: 62,347.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,939.97 : 105,001.41 = 41,528.80 : x
  2. Step 2: Convert to fraction form
    69,939.97/105,001.41 = 41,528.80/x
  3. Step 3: Cross multiply
    69,939.97x = 105,001.41 × 41,528.80
  4. Step 4: Simplify right side
    69,939.97x = 4,360,582,555.61
  5. Step 5: Solve for x
    x = 4,360,582,555.61/69,939.97
  6. Step 6: Final answer
    x = 62,347.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.