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Finding the Fourth Proportional to 109,298.85, 150,832.97 and 61,553.01

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Solution

The fourth proportional to 109,298.85, 150,832.97 and 61,553.01 is: 84,943.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,298.85 : 150,832.97 = 61,553.01 : x
  2. Step 2: Convert to fraction form
    109,298.85/150,832.97 = 61,553.01/x
  3. Step 3: Cross multiply
    109,298.85x = 150,832.97 × 61,553.01
  4. Step 4: Simplify right side
    109,298.85x = 9,284,223,002.97
  5. Step 5: Solve for x
    x = 9,284,223,002.97/109,298.85
  6. Step 6: Final answer
    x = 84,943.46

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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.