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Finding the Fourth Proportional to 68,865.38, 103,353.42 and 35,595.19

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Solution

The fourth proportional to 68,865.38, 103,353.42 and 35,595.19 is: 53,421.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,865.38 : 103,353.42 = 35,595.19 : x
  2. Step 2: Convert to fraction form
    68,865.38/103,353.42 = 35,595.19/x
  3. Step 3: Cross multiply
    68,865.38x = 103,353.42 × 35,595.19
  4. Step 4: Simplify right side
    68,865.38x = 3,678,884,105.28
  5. Step 5: Solve for x
    x = 3,678,884,105.28/68,865.38
  6. Step 6: Final answer
    x = 53,421.39

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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.