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Finding the Fourth Proportional to 361,948.50, 542,922.75 and 112,630.50

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Solution

The fourth proportional to 361,948.50, 542,922.75 and 112,630.50 is: 168,945.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,948.50 : 542,922.75 = 112,630.50 : x
  2. Step 2: Convert to fraction form
    361,948.50/542,922.75 = 112,630.50/x
  3. Step 3: Cross multiply
    361,948.50x = 542,922.75 × 112,630.50
  4. Step 4: Simplify right side
    361,948.50x = 61,149,660,793.88
  5. Step 5: Solve for x
    x = 61,149,660,793.88/361,948.50
  6. Step 6: Final answer
    x = 168,945.75

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Similar ratio
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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.