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Finding the Fourth Proportional to 64,233.60, 96,220.80 and 36,499.20

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Solution

The fourth proportional to 64,233.60, 96,220.80 and 36,499.20 is: 54,675.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,233.60 : 96,220.80 = 36,499.20 : x
  2. Step 2: Convert to fraction form
    64,233.60/96,220.80 = 36,499.20/x
  3. Step 3: Cross multiply
    64,233.60x = 96,220.80 × 36,499.20
  4. Step 4: Simplify right side
    64,233.60x = 3,511,982,223.36
  5. Step 5: Solve for x
    x = 3,511,982,223.36/64,233.60
  6. Step 6: Final answer
    x = 54,675.16

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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.