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Finding the Fourth Proportional to 74,394.70, 112,103.46 and 61,535.14

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Solution

The fourth proportional to 74,394.70, 112,103.46 and 61,535.14 is: 92,725.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,394.70 : 112,103.46 = 61,535.14 : x
  2. Step 2: Convert to fraction form
    74,394.70/112,103.46 = 61,535.14/x
  3. Step 3: Cross multiply
    74,394.70x = 112,103.46 × 61,535.14
  4. Step 4: Simplify right side
    74,394.70x = 6,898,302,105.58
  5. Step 5: Solve for x
    x = 6,898,302,105.58/74,394.70
  6. Step 6: Final answer
    x = 92,725.72

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.