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Finding the Fourth Proportional to 74,919.76, 112,339.70 and 32,750.48

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Solution

The fourth proportional to 74,919.76, 112,339.70 and 32,750.48 is: 49,108.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,919.76 : 112,339.70 = 32,750.48 : x
  2. Step 2: Convert to fraction form
    74,919.76/112,339.70 = 32,750.48/x
  3. Step 3: Cross multiply
    74,919.76x = 112,339.70 × 32,750.48
  4. Step 4: Simplify right side
    74,919.76x = 3,679,179,098.06
  5. Step 5: Solve for x
    x = 3,679,179,098.06/74,919.76
  6. Step 6: Final answer
    x = 49,108.26

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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.