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Finding the Fourth Proportional to 183,915.64, 275,871.69 and 108,981.85

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Solution

The fourth proportional to 183,915.64, 275,871.69 and 108,981.85 is: 163,471.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,915.64 : 275,871.69 = 108,981.85 : x
  2. Step 2: Convert to fraction form
    183,915.64/275,871.69 = 108,981.85/x
  3. Step 3: Cross multiply
    183,915.64x = 275,871.69 × 108,981.85
  4. Step 4: Simplify right side
    183,915.64x = 30,065,007,138.83
  5. Step 5: Solve for x
    x = 30,065,007,138.83/183,915.64
  6. Step 6: Final answer
    x = 163,471.73

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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.