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Finding the Fourth Proportional to 48,230.40, 72,345.60 and 43,321.80

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Solution

The fourth proportional to 48,230.40, 72,345.60 and 43,321.80 is: 64,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,230.40 : 72,345.60 = 43,321.80 : x
  2. Step 2: Convert to fraction form
    48,230.40/72,345.60 = 43,321.80/x
  3. Step 3: Cross multiply
    48,230.40x = 72,345.60 × 43,321.80
  4. Step 4: Simplify right side
    48,230.40x = 3,134,141,614.08
  5. Step 5: Solve for x
    x = 3,134,141,614.08/48,230.40
  6. Step 6: Final answer
    x = 64,982.70

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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.