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Finding the Fourth Proportional to 170,469.80, 256,011.90 and 164,940.20

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Solution

The fourth proportional to 170,469.80, 256,011.90 and 164,940.20 is: 247,707.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,469.80 : 256,011.90 = 164,940.20 : x
  2. Step 2: Convert to fraction form
    170,469.80/256,011.90 = 164,940.20/x
  3. Step 3: Cross multiply
    170,469.80x = 256,011.90 × 164,940.20
  4. Step 4: Simplify right side
    170,469.80x = 42,226,653,988.38
  5. Step 5: Solve for x
    x = 42,226,653,988.38/170,469.80
  6. Step 6: Final answer
    x = 247,707.54

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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.