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Finding the Fourth Proportional to 137,915.97, 206,479.23 and 93,463.67

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Solution

The fourth proportional to 137,915.97, 206,479.23 and 93,463.67 is: 139,928.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,915.97 : 206,479.23 = 93,463.67 : x
  2. Step 2: Convert to fraction form
    137,915.97/206,479.23 = 93,463.67/x
  3. Step 3: Cross multiply
    137,915.97x = 206,479.23 × 93,463.67
  4. Step 4: Simplify right side
    137,915.97x = 19,298,306,780.28
  5. Step 5: Solve for x
    x = 19,298,306,780.28/137,915.97
  6. Step 6: Final answer
    x = 139,928.01

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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.