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Finding the Fourth Proportional to 154,552.71, 231,915.18 and 83,473.84

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Solution

The fourth proportional to 154,552.71, 231,915.18 and 83,473.84 is: 125,257.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,552.71 : 231,915.18 = 83,473.84 : x
  2. Step 2: Convert to fraction form
    154,552.71/231,915.18 = 83,473.84/x
  3. Step 3: Cross multiply
    154,552.71x = 231,915.18 × 83,473.84
  4. Step 4: Simplify right side
    154,552.71x = 19,358,850,527.50
  5. Step 5: Solve for x
    x = 19,358,850,527.50/154,552.71
  6. Step 6: Final answer
    x = 125,257.27

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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.