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Finding the Fourth Proportional to 272,658.39, 376,171.20 and 157,874.39

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Solution

The fourth proportional to 272,658.39, 376,171.20 and 157,874.39 is: 217,810.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,658.39 : 376,171.20 = 157,874.39 : x
  2. Step 2: Convert to fraction form
    272,658.39/376,171.20 = 157,874.39/x
  3. Step 3: Cross multiply
    272,658.39x = 376,171.20 × 157,874.39
  4. Step 4: Simplify right side
    272,658.39x = 59,387,798,265.35
  5. Step 5: Solve for x
    x = 59,387,798,265.35/272,658.39
  6. Step 6: Final answer
    x = 217,810.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.