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Finding the Fourth Proportional to 158,915.76, 219,212.15 and 95,216.66

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Solution

The fourth proportional to 158,915.76, 219,212.15 and 95,216.66 is: 131,344.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,915.76 : 219,212.15 = 95,216.66 : x
  2. Step 2: Convert to fraction form
    158,915.76/219,212.15 = 95,216.66/x
  3. Step 3: Cross multiply
    158,915.76x = 219,212.15 × 95,216.66
  4. Step 4: Simplify right side
    158,915.76x = 20,872,647,182.28
  5. Step 5: Solve for x
    x = 20,872,647,182.28/158,915.76
  6. Step 6: Final answer
    x = 131,344.10

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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.