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Finding the Fourth Proportional to 74,611.76, 111,917.65 and 25,363.76

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Solution

The fourth proportional to 74,611.76, 111,917.65 and 25,363.76 is: 38,045.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,611.76 : 111,917.65 = 25,363.76 : x
  2. Step 2: Convert to fraction form
    74,611.76/111,917.65 = 25,363.76/x
  3. Step 3: Cross multiply
    74,611.76x = 111,917.65 × 25,363.76
  4. Step 4: Simplify right side
    74,611.76x = 2,838,652,414.36
  5. Step 5: Solve for x
    x = 2,838,652,414.36/74,611.76
  6. Step 6: Final answer
    x = 38,045.64

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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.