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Finding the Fourth Proportional to 74,967.50, 112,363.77 and 41,671.64

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Solution

The fourth proportional to 74,967.50, 112,363.77 and 41,671.64 is: 62,458.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,967.50 : 112,363.77 = 41,671.64 : x
  2. Step 2: Convert to fraction form
    74,967.50/112,363.77 = 41,671.64/x
  3. Step 3: Cross multiply
    74,967.50x = 112,363.77 × 41,671.64
  4. Step 4: Simplify right side
    74,967.50x = 4,682,382,572.48
  5. Step 5: Solve for x
    x = 4,682,382,572.48/74,967.50
  6. Step 6: Final answer
    x = 62,458.83

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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.