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Finding the Fourth Proportional to 201,632.60, 302,448.90 and 61,391.23

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Solution

The fourth proportional to 201,632.60, 302,448.90 and 61,391.23 is: 92,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,632.60 : 302,448.90 = 61,391.23 : x
  2. Step 2: Convert to fraction form
    201,632.60/302,448.90 = 61,391.23/x
  3. Step 3: Cross multiply
    201,632.60x = 302,448.90 × 61,391.23
  4. Step 4: Simplify right side
    201,632.60x = 18,567,709,983.15
  5. Step 5: Solve for x
    x = 18,567,709,983.15/201,632.60
  6. Step 6: Final answer
    x = 92,086.85

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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.