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Finding the Fourth Proportional to 109,459.94, 151,063.88 and 61,723.17

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Solution

The fourth proportional to 109,459.94, 151,063.88 and 61,723.17 is: 85,183.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,459.94 : 151,063.88 = 61,723.17 : x
  2. Step 2: Convert to fraction form
    109,459.94/151,063.88 = 61,723.17/x
  3. Step 3: Cross multiply
    109,459.94x = 151,063.88 × 61,723.17
  4. Step 4: Simplify right side
    109,459.94x = 9,324,141,237.48
  5. Step 5: Solve for x
    x = 9,324,141,237.48/109,459.94
  6. Step 6: Final answer
    x = 85,183.14

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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.