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Finding the Fourth Proportional to 269,041.08, 403,421.48 and 100,422.72

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Solution

The fourth proportional to 269,041.08, 403,421.48 and 100,422.72 is: 150,581.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,041.08 : 403,421.48 = 100,422.72 : x
  2. Step 2: Convert to fraction form
    269,041.08/403,421.48 = 100,422.72/x
  3. Step 3: Cross multiply
    269,041.08x = 403,421.48 × 100,422.72
  4. Step 4: Simplify right side
    269,041.08x = 40,512,682,328.03
  5. Step 5: Solve for x
    x = 40,512,682,328.03/269,041.08
  6. Step 6: Final answer
    x = 150,581.77

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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.