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Finding the Fourth Proportional to 66,327.36, 99,002.64 and 60,786.96

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Solution

The fourth proportional to 66,327.36, 99,002.64 and 60,786.96 is: 90,732.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,327.36 : 99,002.64 = 60,786.96 : x
  2. Step 2: Convert to fraction form
    66,327.36/99,002.64 = 60,786.96/x
  3. Step 3: Cross multiply
    66,327.36x = 99,002.64 × 60,786.96
  4. Step 4: Simplify right side
    66,327.36x = 6,018,069,517.57
  5. Step 5: Solve for x
    x = 6,018,069,517.57/66,327.36
  6. Step 6: Final answer
    x = 90,732.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.