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Finding the Fourth Proportional to 73,515.84, 110,257.20 and 20,924.16

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Solution

The fourth proportional to 73,515.84, 110,257.20 and 20,924.16 is: 31,381.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,515.84 : 110,257.20 = 20,924.16 : x
  2. Step 2: Convert to fraction form
    73,515.84/110,257.20 = 20,924.16/x
  3. Step 3: Cross multiply
    73,515.84x = 110,257.20 × 20,924.16
  4. Step 4: Simplify right side
    73,515.84x = 2,307,039,293.95
  5. Step 5: Solve for x
    x = 2,307,039,293.95/73,515.84
  6. Step 6: Final answer
    x = 31,381.53

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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.