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Finding the Fourth Proportional to 101,182.80, 151,772.76 and 45,778.80

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Solution

The fourth proportional to 101,182.80, 151,772.76 and 45,778.80 is: 68,667.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,182.80 : 151,772.76 = 45,778.80 : x
  2. Step 2: Convert to fraction form
    101,182.80/151,772.76 = 45,778.80/x
  3. Step 3: Cross multiply
    101,182.80x = 151,772.76 × 45,778.80
  4. Step 4: Simplify right side
    101,182.80x = 6,947,974,825.49
  5. Step 5: Solve for x
    x = 6,947,974,825.49/101,182.80
  6. Step 6: Final answer
    x = 68,667.55

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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.