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Finding the Fourth Proportional to 153,825.90, 230,738.85 and 133,089.90

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Solution

The fourth proportional to 153,825.90, 230,738.85 and 133,089.90 is: 199,634.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,825.90 : 230,738.85 = 133,089.90 : x
  2. Step 2: Convert to fraction form
    153,825.90/230,738.85 = 133,089.90/x
  3. Step 3: Cross multiply
    153,825.90x = 230,738.85 × 133,089.90
  4. Step 4: Simplify right side
    153,825.90x = 30,709,010,472.62
  5. Step 5: Solve for x
    x = 30,709,010,472.62/153,825.90
  6. Step 6: Final answer
    x = 199,634.85

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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.