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Finding the Fourth Proportional to 308,205.92, 425,287.33 and 170,366.23

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Solution

The fourth proportional to 308,205.92, 425,287.33 and 170,366.23 is: 235,085.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,205.92 : 425,287.33 = 170,366.23 : x
  2. Step 2: Convert to fraction form
    308,205.92/425,287.33 = 170,366.23/x
  3. Step 3: Cross multiply
    308,205.92x = 425,287.33 × 170,366.23
  4. Step 4: Simplify right side
    308,205.92x = 72,454,596,952.43
  5. Step 5: Solve for x
    x = 72,454,596,952.43/308,205.92
  6. Step 6: Final answer
    x = 235,085.03

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1.5x scale

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.