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Finding the Fourth Proportional to 91,826.84, 126,722.40 and 88,648.40

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Solution

The fourth proportional to 91,826.84, 126,722.40 and 88,648.40 is: 122,336.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,826.84 : 126,722.40 = 88,648.40 : x
  2. Step 2: Convert to fraction form
    91,826.84/126,722.40 = 88,648.40/x
  3. Step 3: Cross multiply
    91,826.84x = 126,722.40 × 88,648.40
  4. Step 4: Simplify right side
    91,826.84x = 11,233,738,004.16
  5. Step 5: Solve for x
    x = 11,233,738,004.16/91,826.84
  6. Step 6: Final answer
    x = 122,336.11

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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.