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Finding the Fourth Proportional to 126,018.96, 173,905.62 and 68,658.10

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Solution

The fourth proportional to 126,018.96, 173,905.62 and 68,658.10 is: 94,747.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,018.96 : 173,905.62 = 68,658.10 : x
  2. Step 2: Convert to fraction form
    126,018.96/173,905.62 = 68,658.10/x
  3. Step 3: Cross multiply
    126,018.96x = 173,905.62 × 68,658.10
  4. Step 4: Simplify right side
    126,018.96x = 11,940,029,448.52
  5. Step 5: Solve for x
    x = 11,940,029,448.52/126,018.96
  6. Step 6: Final answer
    x = 94,747.88

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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.