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Finding the Fourth Proportional to 170,667.40, 255,417.90 and 149,672.20

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Solution

The fourth proportional to 170,667.40, 255,417.90 and 149,672.20 is: 223,996.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,667.40 : 255,417.90 = 149,672.20 : x
  2. Step 2: Convert to fraction form
    170,667.40/255,417.90 = 149,672.20/x
  3. Step 3: Cross multiply
    170,667.40x = 255,417.90 × 149,672.20
  4. Step 4: Simplify right side
    170,667.40x = 38,228,959,012.38
  5. Step 5: Solve for x
    x = 38,228,959,012.38/170,667.40
  6. Step 6: Final answer
    x = 223,996.84

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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.