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Finding the Fourth Proportional to 74,794.59, 112,122.63 and 39,248.55

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Solution

The fourth proportional to 74,794.59, 112,122.63 and 39,248.55 is: 58,836.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,794.59 : 112,122.63 = 39,248.55 : x
  2. Step 2: Convert to fraction form
    74,794.59/112,122.63 = 39,248.55/x
  3. Step 3: Cross multiply
    74,794.59x = 112,122.63 × 39,248.55
  4. Step 4: Simplify right side
    74,794.59x = 4,400,650,649.69
  5. Step 5: Solve for x
    x = 4,400,650,649.69/74,794.59
  6. Step 6: Final answer
    x = 58,836.48

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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.