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Finding the Fourth Proportional to 201,535.05, 302,215.08 and 61,260.87

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Solution

The fourth proportional to 201,535.05, 302,215.08 and 61,260.87 is: 91,864.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,535.05 : 302,215.08 = 61,260.87 : x
  2. Step 2: Convert to fraction form
    201,535.05/302,215.08 = 61,260.87/x
  3. Step 3: Cross multiply
    201,535.05x = 302,215.08 × 61,260.87
  4. Step 4: Simplify right side
    201,535.05x = 18,513,958,727.92
  5. Step 5: Solve for x
    x = 18,513,958,727.92/201,535.05
  6. Step 6: Final answer
    x = 91,864.71

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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.