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Finding the Fourth Proportional to 74,465.40, 111,659.70 and 27,694.20

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Solution

The fourth proportional to 74,465.40, 111,659.70 and 27,694.20 is: 41,527.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,465.40 : 111,659.70 = 27,694.20 : x
  2. Step 2: Convert to fraction form
    74,465.40/111,659.70 = 27,694.20/x
  3. Step 3: Cross multiply
    74,465.40x = 111,659.70 × 27,694.20
  4. Step 4: Simplify right side
    74,465.40x = 3,092,326,063.74
  5. Step 5: Solve for x
    x = 3,092,326,063.74/74,465.40
  6. Step 6: Final answer
    x = 41,527.02

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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.