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Finding the Fourth Proportional to 371,820.33, 557,630.87 and 161,408.25

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Solution

The fourth proportional to 371,820.33, 557,630.87 and 161,408.25 is: 242,069.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,820.33 : 557,630.87 = 161,408.25 : x
  2. Step 2: Convert to fraction form
    371,820.33/557,630.87 = 161,408.25/x
  3. Step 3: Cross multiply
    371,820.33x = 557,630.87 × 161,408.25
  4. Step 4: Simplify right side
    371,820.33x = 90,006,222,065.64
  5. Step 5: Solve for x
    x = 90,006,222,065.64/371,820.33
  6. Step 6: Final answer
    x = 242,069.13

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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.