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Finding the Fourth Proportional to 361,627.25, 542,440.88 and 140,011.25

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Solution

The fourth proportional to 361,627.25, 542,440.88 and 140,011.25 is: 210,016.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,627.25 : 542,440.88 = 140,011.25 : x
  2. Step 2: Convert to fraction form
    361,627.25/542,440.88 = 140,011.25/x
  3. Step 3: Cross multiply
    361,627.25x = 542,440.88 × 140,011.25
  4. Step 4: Simplify right side
    361,627.25x = 75,947,824,959.84
  5. Step 5: Solve for x
    x = 75,947,824,959.84/361,627.25
  6. Step 6: Final answer
    x = 210,016.88

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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.