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Finding the Fourth Proportional to 170,866.80, 256,300.20 and 161,025.30

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Solution

The fourth proportional to 170,866.80, 256,300.20 and 161,025.30 is: 241,537.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,866.80 : 256,300.20 = 161,025.30 : x
  2. Step 2: Convert to fraction form
    170,866.80/256,300.20 = 161,025.30/x
  3. Step 3: Cross multiply
    170,866.80x = 256,300.20 × 161,025.30
  4. Step 4: Simplify right side
    170,866.80x = 41,270,816,595.06
  5. Step 5: Solve for x
    x = 41,270,816,595.06/170,866.80
  6. Step 6: Final answer
    x = 241,537.95

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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.