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Finding the Fourth Proportional to 74,563, 111,809.95 and 27,803.32

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Solution

The fourth proportional to 74,563, 111,809.95 and 27,803.32 is: 41,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,563 : 111,809.95 = 27,803.32 : x
  2. Step 2: Convert to fraction form
    74,563/111,809.95 = 27,803.32/x
  3. Step 3: Cross multiply
    74,563x = 111,809.95 × 27,803.32
  4. Step 4: Simplify right side
    74,563x = 3,108,687,819.03
  5. Step 5: Solve for x
    x = 3,108,687,819.03/74,563
  6. Step 6: Final answer
    x = 41,692.10

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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.