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Finding the Fourth Proportional to 112,638.75, 168,826.91 and 62,694.96

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Solution

The fourth proportional to 112,638.75, 168,826.91 and 62,694.96 is: 93,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,638.75 : 168,826.91 = 62,694.96 : x
  2. Step 2: Convert to fraction form
    112,638.75/168,826.91 = 62,694.96/x
  3. Step 3: Cross multiply
    112,638.75x = 168,826.91 × 62,694.96
  4. Step 4: Simplify right side
    112,638.75x = 10,584,596,055.90
  5. Step 5: Solve for x
    x = 10,584,596,055.90/112,638.75
  6. Step 6: Final answer
    x = 93,969.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.