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Finding the Fourth Proportional to 203,924.70, 305,887.05 and 161,934.30

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Solution

The fourth proportional to 203,924.70, 305,887.05 and 161,934.30 is: 242,901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,924.70 : 305,887.05 = 161,934.30 : x
  2. Step 2: Convert to fraction form
    203,924.70/305,887.05 = 161,934.30/x
  3. Step 3: Cross multiply
    203,924.70x = 305,887.05 × 161,934.30
  4. Step 4: Simplify right side
    203,924.70x = 49,533,605,320.82
  5. Step 5: Solve for x
    x = 49,533,605,320.82/203,924.70
  6. Step 6: Final answer
    x = 242,901.45

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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.