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Finding the Fourth Proportional to 127,275.20, 190,912.80 and 44,169.20

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Solution

The fourth proportional to 127,275.20, 190,912.80 and 44,169.20 is: 66,253.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,275.20 : 190,912.80 = 44,169.20 : x
  2. Step 2: Convert to fraction form
    127,275.20/190,912.80 = 44,169.20/x
  3. Step 3: Cross multiply
    127,275.20x = 190,912.80 × 44,169.20
  4. Step 4: Simplify right side
    127,275.20x = 8,432,465,645.76
  5. Step 5: Solve for x
    x = 8,432,465,645.76/127,275.20
  6. Step 6: Final answer
    x = 66,253.80

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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.