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Finding the Fourth Proportional to 64,503.60, 96,625.80 and 36,769.20

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Solution

The fourth proportional to 64,503.60, 96,625.80 and 36,769.20 is: 55,079.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,503.60 : 96,625.80 = 36,769.20 : x
  2. Step 2: Convert to fraction form
    64,503.60/96,625.80 = 36,769.20/x
  3. Step 3: Cross multiply
    64,503.60x = 96,625.80 × 36,769.20
  4. Step 4: Simplify right side
    64,503.60x = 3,552,853,365.36
  5. Step 5: Solve for x
    x = 3,552,853,365.36/64,503.60
  6. Step 6: Final answer
    x = 55,079.92

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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.