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Finding the Fourth Proportional to 87,374.40, 130,975.20 and 34,713.60

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Solution

The fourth proportional to 87,374.40, 130,975.20 and 34,713.60 is: 52,036.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,374.40 : 130,975.20 = 34,713.60 : x
  2. Step 2: Convert to fraction form
    87,374.40/130,975.20 = 34,713.60/x
  3. Step 3: Cross multiply
    87,374.40x = 130,975.20 × 34,713.60
  4. Step 4: Simplify right side
    87,374.40x = 4,546,620,702.72
  5. Step 5: Solve for x
    x = 4,546,620,702.72/87,374.40
  6. Step 6: Final answer
    x = 52,036.07

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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.