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Finding the Fourth Proportional to 169,839.80, 254,759.70 and 167,215.40

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Solution

The fourth proportional to 169,839.80, 254,759.70 and 167,215.40 is: 250,823.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,839.80 : 254,759.70 = 167,215.40 : x
  2. Step 2: Convert to fraction form
    169,839.80/254,759.70 = 167,215.40/x
  3. Step 3: Cross multiply
    169,839.80x = 254,759.70 × 167,215.40
  4. Step 4: Simplify right side
    169,839.80x = 42,599,745,139.38
  5. Step 5: Solve for x
    x = 42,599,745,139.38/169,839.80
  6. Step 6: Final answer
    x = 250,823.10

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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.