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Finding the Fourth Proportional to 203,180.76, 304,799.72 and 84,825.18

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Solution

The fourth proportional to 203,180.76, 304,799.72 and 84,825.18 is: 127,249.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,180.76 : 304,799.72 = 84,825.18 : x
  2. Step 2: Convert to fraction form
    203,180.76/304,799.72 = 84,825.18/x
  3. Step 3: Cross multiply
    203,180.76x = 304,799.72 × 84,825.18
  4. Step 4: Simplify right side
    203,180.76x = 25,854,690,688.82
  5. Step 5: Solve for x
    x = 25,854,690,688.82/203,180.76
  6. Step 6: Final answer
    x = 127,249.70

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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.