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Finding the Fourth Proportional to 74,193.90, 111,160.44 and 61,793.34

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Solution

The fourth proportional to 74,193.90, 111,160.44 and 61,793.34 is: 92,581.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,193.90 : 111,160.44 = 61,793.34 : x
  2. Step 2: Convert to fraction form
    74,193.90/111,160.44 = 61,793.34/x
  3. Step 3: Cross multiply
    74,193.90x = 111,160.44 × 61,793.34
  4. Step 4: Simplify right side
    74,193.90x = 6,868,974,863.47
  5. Step 5: Solve for x
    x = 6,868,974,863.47/74,193.90
  6. Step 6: Final answer
    x = 92,581.40

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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.