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Finding the Fourth Proportional to 64,301.12, 88,737.12 and 36,012.56

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Solution

The fourth proportional to 64,301.12, 88,737.12 and 36,012.56 is: 49,698.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,301.12 : 88,737.12 = 36,012.56 : x
  2. Step 2: Convert to fraction form
    64,301.12/88,737.12 = 36,012.56/x
  3. Step 3: Cross multiply
    64,301.12x = 88,737.12 × 36,012.56
  4. Step 4: Simplify right side
    64,301.12x = 3,195,650,858.23
  5. Step 5: Solve for x
    x = 3,195,650,858.23/64,301.12
  6. Step 6: Final answer
    x = 49,698.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.