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Finding the Fourth Proportional to 231,449.48, 347,240.78 and 73,702.28

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Solution

The fourth proportional to 231,449.48, 347,240.78 and 73,702.28 is: 110,574.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,449.48 : 347,240.78 = 73,702.28 : x
  2. Step 2: Convert to fraction form
    231,449.48/347,240.78 = 73,702.28/x
  3. Step 3: Cross multiply
    231,449.48x = 347,240.78 × 73,702.28
  4. Step 4: Simplify right side
    231,449.48x = 25,592,437,194.98
  5. Step 5: Solve for x
    x = 25,592,437,194.98/231,449.48
  6. Step 6: Final answer
    x = 110,574.62

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1.5x scale

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.