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Finding the Fourth Proportional to 267,752.61, 401,628.96 and 90,244.80

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Solution

The fourth proportional to 267,752.61, 401,628.96 and 90,244.80 is: 135,367.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,752.61 : 401,628.96 = 90,244.80 : x
  2. Step 2: Convert to fraction form
    267,752.61/401,628.96 = 90,244.80/x
  3. Step 3: Cross multiply
    267,752.61x = 401,628.96 × 90,244.80
  4. Step 4: Simplify right side
    267,752.61x = 36,244,925,169.41
  5. Step 5: Solve for x
    x = 36,244,925,169.41/267,752.61
  6. Step 6: Final answer
    x = 135,367.22

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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.