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Finding the Fourth Proportional to 70,950.80, 106,280.40 and 48,789.20

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Solution

The fourth proportional to 70,950.80, 106,280.40 and 48,789.20 is: 73,083.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,950.80 : 106,280.40 = 48,789.20 : x
  2. Step 2: Convert to fraction form
    70,950.80/106,280.40 = 48,789.20/x
  3. Step 3: Cross multiply
    70,950.80x = 106,280.40 × 48,789.20
  4. Step 4: Simplify right side
    70,950.80x = 5,185,335,691.68
  5. Step 5: Solve for x
    x = 5,185,335,691.68/70,950.80
  6. Step 6: Final answer
    x = 73,083.54

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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.