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Finding the Fourth Proportional to 48,410.40, 72,615.60 and 43,648.80

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Solution

The fourth proportional to 48,410.40, 72,615.60 and 43,648.80 is: 65,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,410.40 : 72,615.60 = 43,648.80 : x
  2. Step 2: Convert to fraction form
    48,410.40/72,615.60 = 43,648.80/x
  3. Step 3: Cross multiply
    48,410.40x = 72,615.60 × 43,648.80
  4. Step 4: Simplify right side
    48,410.40x = 3,169,583,801.28
  5. Step 5: Solve for x
    x = 3,169,583,801.28/48,410.40
  6. Step 6: Final answer
    x = 65,473.20

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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.