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Finding the Fourth Proportional to 200,631.72, 300,860.10 and 75,885.24

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Solution

The fourth proportional to 200,631.72, 300,860.10 and 75,885.24 is: 113,794.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,631.72 : 300,860.10 = 75,885.24 : x
  2. Step 2: Convert to fraction form
    200,631.72/300,860.10 = 75,885.24/x
  3. Step 3: Cross multiply
    200,631.72x = 300,860.10 × 75,885.24
  4. Step 4: Simplify right side
    200,631.72x = 22,830,841,738.58
  5. Step 5: Solve for x
    x = 22,830,841,738.58/200,631.72
  6. Step 6: Final answer
    x = 113,794.77

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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.