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Finding the Fourth Proportional to 374,111.88, 561,167.82 and 137,352.12

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Solution

The fourth proportional to 374,111.88, 561,167.82 and 137,352.12 is: 206,028.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,111.88 : 561,167.82 = 137,352.12 : x
  2. Step 2: Convert to fraction form
    374,111.88/561,167.82 = 137,352.12/x
  3. Step 3: Cross multiply
    374,111.88x = 561,167.82 × 137,352.12
  4. Step 4: Simplify right side
    374,111.88x = 77,077,589,752.78
  5. Step 5: Solve for x
    x = 77,077,589,752.78/374,111.88
  6. Step 6: Final answer
    x = 206,028.18

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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.