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Finding the Fourth Proportional to 111,737.96, 154,154.42 and 63,965.56

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Solution

The fourth proportional to 111,737.96, 154,154.42 and 63,965.56 is: 88,247.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,737.96 : 154,154.42 = 63,965.56 : x
  2. Step 2: Convert to fraction form
    111,737.96/154,154.42 = 63,965.56/x
  3. Step 3: Cross multiply
    111,737.96x = 154,154.42 × 63,965.56
  4. Step 4: Simplify right side
    111,737.96x = 9,860,573,801.78
  5. Step 5: Solve for x
    x = 9,860,573,801.78/111,737.96
  6. Step 6: Final answer
    x = 88,247.30

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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.