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Finding the Fourth Proportional to 109,960.70, 151,729.63 and 61,560.11

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Solution

The fourth proportional to 109,960.70, 151,729.63 and 61,560.11 is: 84,943.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,960.70 : 151,729.63 = 61,560.11 : x
  2. Step 2: Convert to fraction form
    109,960.70/151,729.63 = 61,560.11/x
  3. Step 3: Cross multiply
    109,960.70x = 151,729.63 × 61,560.11
  4. Step 4: Simplify right side
    109,960.70x = 9,340,492,713.06
  5. Step 5: Solve for x
    x = 9,340,492,713.06/109,960.70
  6. Step 6: Final answer
    x = 84,943.92

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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.