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Finding the Fourth Proportional to 170,789.80, 256,184.70 and 118,301.80

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Solution

The fourth proportional to 170,789.80, 256,184.70 and 118,301.80 is: 177,452.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,789.80 : 256,184.70 = 118,301.80 : x
  2. Step 2: Convert to fraction form
    170,789.80/256,184.70 = 118,301.80/x
  3. Step 3: Cross multiply
    170,789.80x = 256,184.70 × 118,301.80
  4. Step 4: Simplify right side
    170,789.80x = 30,307,111,142.46
  5. Step 5: Solve for x
    x = 30,307,111,142.46/170,789.80
  6. Step 6: Final answer
    x = 177,452.70

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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.