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Finding the Fourth Proportional to 67,994.78, 101,905.80 and 38,429.24

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Solution

The fourth proportional to 67,994.78, 101,905.80 and 38,429.24 is: 57,595.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,994.78 : 101,905.80 = 38,429.24 : x
  2. Step 2: Convert to fraction form
    67,994.78/101,905.80 = 38,429.24/x
  3. Step 3: Cross multiply
    67,994.78x = 101,905.80 × 38,429.24
  4. Step 4: Simplify right side
    67,994.78x = 3,916,162,445.59
  5. Step 5: Solve for x
    x = 3,916,162,445.59/67,994.78
  6. Step 6: Final answer
    x = 57,595.05

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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.