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Finding the Fourth Proportional to 92,531.70, 127,694.62 and 54,291.90

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Solution

The fourth proportional to 92,531.70, 127,694.62 and 54,291.90 is: 74,923.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,531.70 : 127,694.62 = 54,291.90 : x
  2. Step 2: Convert to fraction form
    92,531.70/127,694.62 = 54,291.90/x
  3. Step 3: Cross multiply
    92,531.70x = 127,694.62 × 54,291.90
  4. Step 4: Simplify right side
    92,531.70x = 6,932,783,264.32
  5. Step 5: Solve for x
    x = 6,932,783,264.32/92,531.70
  6. Step 6: Final answer
    x = 74,923.33

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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.