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Finding the Fourth Proportional to 74,230.78, 111,318.54 and 29,842.60

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Solution

The fourth proportional to 74,230.78, 111,318.54 and 29,842.60 is: 44,752.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,230.78 : 111,318.54 = 29,842.60 : x
  2. Step 2: Convert to fraction form
    74,230.78/111,318.54 = 29,842.60/x
  3. Step 3: Cross multiply
    74,230.78x = 111,318.54 × 29,842.60
  4. Step 4: Simplify right side
    74,230.78x = 3,322,034,661.80
  5. Step 5: Solve for x
    x = 3,322,034,661.80/74,230.78
  6. Step 6: Final answer
    x = 44,752.79

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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.