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Finding the Fourth Proportional to 64,499.60, 96,619.80 and 36,765.20

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Solution

The fourth proportional to 64,499.60, 96,619.80 and 36,765.20 is: 55,073.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,499.60 : 96,619.80 = 36,765.20 : x
  2. Step 2: Convert to fraction form
    64,499.60/96,619.80 = 36,765.20/x
  3. Step 3: Cross multiply
    64,499.60x = 96,619.80 × 36,765.20
  4. Step 4: Simplify right side
    64,499.60x = 3,552,246,270.96
  5. Step 5: Solve for x
    x = 3,552,246,270.96/64,499.60
  6. Step 6: Final answer
    x = 55,073.93

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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.