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Finding the Fourth Proportional to 103,793.06, 155,748.84 and 40,618.34

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Solution

The fourth proportional to 103,793.06, 155,748.84 and 40,618.34 is: 60,950.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,793.06 : 155,748.84 = 40,618.34 : x
  2. Step 2: Convert to fraction form
    103,793.06/155,748.84 = 40,618.34/x
  3. Step 3: Cross multiply
    103,793.06x = 155,748.84 × 40,618.34
  4. Step 4: Simplify right side
    103,793.06x = 6,326,259,337.73
  5. Step 5: Solve for x
    x = 6,326,259,337.73/103,793.06
  6. Step 6: Final answer
    x = 60,950.70

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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.