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Finding the Fourth Proportional to 170,813.80, 256,220.70 and 168,189.40

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Solution

The fourth proportional to 170,813.80, 256,220.70 and 168,189.40 is: 252,284.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,813.80 : 256,220.70 = 168,189.40 : x
  2. Step 2: Convert to fraction form
    170,813.80/256,220.70 = 168,189.40/x
  3. Step 3: Cross multiply
    170,813.80x = 256,220.70 × 168,189.40
  4. Step 4: Simplify right side
    170,813.80x = 43,093,605,800.58
  5. Step 5: Solve for x
    x = 43,093,605,800.58/170,813.80
  6. Step 6: Final answer
    x = 252,284.10

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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.