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Finding the Fourth Proportional to 74,661.62, 112,009.01 and 27,276.62

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Solution

The fourth proportional to 74,661.62, 112,009.01 and 27,276.62 is: 40,920.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,661.62 : 112,009.01 = 27,276.62 : x
  2. Step 2: Convert to fraction form
    74,661.62/112,009.01 = 27,276.62/x
  3. Step 3: Cross multiply
    74,661.62x = 112,009.01 × 27,276.62
  4. Step 4: Simplify right side
    74,661.62x = 3,055,226,505.92
  5. Step 5: Solve for x
    x = 3,055,226,505.92/74,661.62
  6. Step 6: Final answer
    x = 40,920.98

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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.