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Finding the Fourth Proportional to 168,638.36, 232,711.80 and 93,182

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Solution

The fourth proportional to 168,638.36, 232,711.80 and 93,182 is: 128,586.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,638.36 : 232,711.80 = 93,182 : x
  2. Step 2: Convert to fraction form
    168,638.36/232,711.80 = 93,182/x
  3. Step 3: Cross multiply
    168,638.36x = 232,711.80 × 93,182
  4. Step 4: Simplify right side
    168,638.36x = 21,684,550,947.60
  5. Step 5: Solve for x
    x = 21,684,550,947.60/168,638.36
  6. Step 6: Final answer
    x = 128,586.11

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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.