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Finding the Fourth Proportional to 200,228.64, 300,685.92 and 177,789.76

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Solution

The fourth proportional to 200,228.64, 300,685.92 and 177,789.76 is: 266,989.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,228.64 : 300,685.92 = 177,789.76 : x
  2. Step 2: Convert to fraction form
    200,228.64/300,685.92 = 177,789.76/x
  3. Step 3: Cross multiply
    200,228.64x = 300,685.92 × 177,789.76
  4. Step 4: Simplify right side
    200,228.64x = 53,458,877,552.18
  5. Step 5: Solve for x
    x = 53,458,877,552.18/200,228.64
  6. Step 6: Final answer
    x = 266,989.17

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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.