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Finding the Fourth Proportional to 69,435.70, 95,761.65 and 54,304.90

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Solution

The fourth proportional to 69,435.70, 95,761.65 and 54,304.90 is: 74,894.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,435.70 : 95,761.65 = 54,304.90 : x
  2. Step 2: Convert to fraction form
    69,435.70/95,761.65 = 54,304.90/x
  3. Step 3: Cross multiply
    69,435.70x = 95,761.65 × 54,304.90
  4. Step 4: Simplify right side
    69,435.70x = 5,200,326,827.09
  5. Step 5: Solve for x
    x = 5,200,326,827.09/69,435.70
  6. Step 6: Final answer
    x = 74,894.14

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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.