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Finding the Fourth Proportional to 100,627.70, 150,941.55 and 48,139.70

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Solution

The fourth proportional to 100,627.70, 150,941.55 and 48,139.70 is: 72,209.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,627.70 : 150,941.55 = 48,139.70 : x
  2. Step 2: Convert to fraction form
    100,627.70/150,941.55 = 48,139.70/x
  3. Step 3: Cross multiply
    100,627.70x = 150,941.55 × 48,139.70
  4. Step 4: Simplify right side
    100,627.70x = 7,266,280,934.54
  5. Step 5: Solve for x
    x = 7,266,280,934.54/100,627.70
  6. Step 6: Final answer
    x = 72,209.55

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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.