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Finding the Fourth Proportional to 200,529.80, 300,794.70 and 124,422.20

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Solution

The fourth proportional to 200,529.80, 300,794.70 and 124,422.20 is: 186,633.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,529.80 : 300,794.70 = 124,422.20 : x
  2. Step 2: Convert to fraction form
    200,529.80/300,794.70 = 124,422.20/x
  3. Step 3: Cross multiply
    200,529.80x = 300,794.70 × 124,422.20
  4. Step 4: Simplify right side
    200,529.80x = 37,425,538,322.34
  5. Step 5: Solve for x
    x = 37,425,538,322.34/200,529.80
  6. Step 6: Final answer
    x = 186,633.30

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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.