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Finding the Fourth Proportional to 255,901.97, 383,393.27 and 150,663.53

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Solution

The fourth proportional to 255,901.97, 383,393.27 and 150,663.53 is: 225,724.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,901.97 : 383,393.27 = 150,663.53 : x
  2. Step 2: Convert to fraction form
    255,901.97/383,393.27 = 150,663.53/x
  3. Step 3: Cross multiply
    255,901.97x = 383,393.27 × 150,663.53
  4. Step 4: Simplify right side
    255,901.97x = 57,763,380,766.16
  5. Step 5: Solve for x
    x = 57,763,380,766.16/255,901.97
  6. Step 6: Final answer
    x = 225,724.65

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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.