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Finding the Fourth Proportional to 170,843.80, 256,265.70 and 168,219.40

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Solution

The fourth proportional to 170,843.80, 256,265.70 and 168,219.40 is: 252,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,843.80 : 256,265.70 = 168,219.40 : x
  2. Step 2: Convert to fraction form
    170,843.80/256,265.70 = 168,219.40/x
  3. Step 3: Cross multiply
    170,843.80x = 256,265.70 × 168,219.40
  4. Step 4: Simplify right side
    170,843.80x = 43,108,862,294.58
  5. Step 5: Solve for x
    x = 43,108,862,294.58/170,843.80
  6. Step 6: Final answer
    x = 252,329.10

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1.5x scale

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.