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Finding the Fourth Proportional to 68,016.20, 102,024.30 and 49,353.80

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Solution

The fourth proportional to 68,016.20, 102,024.30 and 49,353.80 is: 74,030.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,016.20 : 102,024.30 = 49,353.80 : x
  2. Step 2: Convert to fraction form
    68,016.20/102,024.30 = 49,353.80/x
  3. Step 3: Cross multiply
    68,016.20x = 102,024.30 × 49,353.80
  4. Step 4: Simplify right side
    68,016.20x = 5,035,286,897.34
  5. Step 5: Solve for x
    x = 5,035,286,897.34/68,016.20
  6. Step 6: Final answer
    x = 74,030.70

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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.