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Finding the Fourth Proportional to 170,980.94, 255,219.42 and 150,780.70

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Solution

The fourth proportional to 170,980.94, 255,219.42 and 150,780.70 is: 225,066.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,980.94 : 255,219.42 = 150,780.70 : x
  2. Step 2: Convert to fraction form
    170,980.94/255,219.42 = 150,780.70/x
  3. Step 3: Cross multiply
    170,980.94x = 255,219.42 × 150,780.70
  4. Step 4: Simplify right side
    170,980.94x = 38,482,162,801.19
  5. Step 5: Solve for x
    x = 38,482,162,801.19/170,980.94
  6. Step 6: Final answer
    x = 225,066.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.