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Finding the Fourth Proportional to 74,358.80, 111,451.80 and 29,963.60

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Solution

The fourth proportional to 74,358.80, 111,451.80 and 29,963.60 is: 44,910.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,358.80 : 111,451.80 = 29,963.60 : x
  2. Step 2: Convert to fraction form
    74,358.80/111,451.80 = 29,963.60/x
  3. Step 3: Cross multiply
    74,358.80x = 111,451.80 × 29,963.60
  4. Step 4: Simplify right side
    74,358.80x = 3,339,497,154.48
  5. Step 5: Solve for x
    x = 3,339,497,154.48/74,358.80
  6. Step 6: Final answer
    x = 44,910.58

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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.