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Finding the Fourth Proportional to 73,406.48, 110,075 and 28,448.88

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Solution

The fourth proportional to 73,406.48, 110,075 and 28,448.88 is: 42,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,406.48 : 110,075 = 28,448.88 : x
  2. Step 2: Convert to fraction form
    73,406.48/110,075 = 28,448.88/x
  3. Step 3: Cross multiply
    73,406.48x = 110,075 × 28,448.88
  4. Step 4: Simplify right side
    73,406.48x = 3,131,510,466
  5. Step 5: Solve for x
    x = 3,131,510,466/73,406.48
  6. Step 6: Final answer
    x = 42,659.86

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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.