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Finding the Fourth Proportional to 48,836.40, 73,254.60 and 45,337.20

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Solution

The fourth proportional to 48,836.40, 73,254.60 and 45,337.20 is: 68,005.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,836.40 : 73,254.60 = 45,337.20 : x
  2. Step 2: Convert to fraction form
    48,836.40/73,254.60 = 45,337.20/x
  3. Step 3: Cross multiply
    48,836.40x = 73,254.60 × 45,337.20
  4. Step 4: Simplify right side
    48,836.40x = 3,321,158,451.12
  5. Step 5: Solve for x
    x = 3,321,158,451.12/48,836.40
  6. Step 6: Final answer
    x = 68,005.80

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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.