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Finding the Fourth Proportional to 78,044.80, 117,039.12 and 33,652.48

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Solution

The fourth proportional to 78,044.80, 117,039.12 and 33,652.48 is: 50,466.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,044.80 : 117,039.12 = 33,652.48 : x
  2. Step 2: Convert to fraction form
    78,044.80/117,039.12 = 33,652.48/x
  3. Step 3: Cross multiply
    78,044.80x = 117,039.12 × 33,652.48
  4. Step 4: Simplify right side
    78,044.80x = 3,938,656,645.02
  5. Step 5: Solve for x
    x = 3,938,656,645.02/78,044.80
  6. Step 6: Final answer
    x = 50,466.61

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1.5x scale

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.