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Finding the Fourth Proportional to 101,794.89, 152,618.52 and 68,432.20

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Solution

The fourth proportional to 101,794.89, 152,618.52 and 68,432.20 is: 102,598.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,794.89 : 152,618.52 = 68,432.20 : x
  2. Step 2: Convert to fraction form
    101,794.89/152,618.52 = 68,432.20/x
  3. Step 3: Cross multiply
    101,794.89x = 152,618.52 × 68,432.20
  4. Step 4: Simplify right side
    101,794.89x = 10,444,021,084.34
  5. Step 5: Solve for x
    x = 10,444,021,084.34/101,794.89
  6. Step 6: Final answer
    x = 102,598.68

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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.