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Finding the Fourth Proportional to 372,874.95, 559,393.43 and 136,217.25

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Solution

The fourth proportional to 372,874.95, 559,393.43 and 136,217.25 is: 204,355.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,874.95 : 559,393.43 = 136,217.25 : x
  2. Step 2: Convert to fraction form
    372,874.95/559,393.43 = 136,217.25/x
  3. Step 3: Cross multiply
    372,874.95x = 559,393.43 × 136,217.25
  4. Step 4: Simplify right side
    372,874.95x = 76,199,034,021.58
  5. Step 5: Solve for x
    x = 76,199,034,021.58/372,874.95
  6. Step 6: Final answer
    x = 204,355.47

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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.