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Finding the Fourth Proportional to 126,173.77, 174,119.94 and 68,813.17

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Solution

The fourth proportional to 126,173.77, 174,119.94 and 68,813.17 is: 94,962.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,173.77 : 174,119.94 = 68,813.17 : x
  2. Step 2: Convert to fraction form
    126,173.77/174,119.94 = 68,813.17/x
  3. Step 3: Cross multiply
    126,173.77x = 174,119.94 × 68,813.17
  4. Step 4: Simplify right side
    126,173.77x = 11,981,745,031.61
  5. Step 5: Solve for x
    x = 11,981,745,031.61/126,173.77
  6. Step 6: Final answer
    x = 94,962.25

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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.