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Finding the Fourth Proportional to 74,429.70, 111,644.55 and 44,905.20

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Solution

The fourth proportional to 74,429.70, 111,644.55 and 44,905.20 is: 67,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,429.70 : 111,644.55 = 44,905.20 : x
  2. Step 2: Convert to fraction form
    74,429.70/111,644.55 = 44,905.20/x
  3. Step 3: Cross multiply
    74,429.70x = 111,644.55 × 44,905.20
  4. Step 4: Simplify right side
    74,429.70x = 5,013,420,846.66
  5. Step 5: Solve for x
    x = 5,013,420,846.66/74,429.70
  6. Step 6: Final answer
    x = 67,357.80

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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.