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Finding the Fourth Proportional to 260,725.98, 359,806.96 and 170,139.90

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Solution

The fourth proportional to 260,725.98, 359,806.96 and 170,139.90 is: 234,796.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,725.98 : 359,806.96 = 170,139.90 : x
  2. Step 2: Convert to fraction form
    260,725.98/359,806.96 = 170,139.90/x
  3. Step 3: Cross multiply
    260,725.98x = 359,806.96 × 170,139.90
  4. Step 4: Simplify right side
    260,725.98x = 61,217,520,193.70
  5. Step 5: Solve for x
    x = 61,217,520,193.70/260,725.98
  6. Step 6: Final answer
    x = 234,796.40

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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.