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Finding the Fourth Proportional to 109,906.38, 151,670.01 and 61,508.34

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Solution

The fourth proportional to 109,906.38, 151,670.01 and 61,508.34 is: 84,881.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,906.38 : 151,670.01 = 61,508.34 : x
  2. Step 2: Convert to fraction form
    109,906.38/151,670.01 = 61,508.34/x
  3. Step 3: Cross multiply
    109,906.38x = 151,670.01 × 61,508.34
  4. Step 4: Simplify right side
    109,906.38x = 9,328,970,542.88
  5. Step 5: Solve for x
    x = 9,328,970,542.88/109,906.38
  6. Step 6: Final answer
    x = 84,881.06

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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.