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Finding the Fourth Proportional to 201,780.81, 302,715.77 and 61,550.37

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Solution

The fourth proportional to 201,780.81, 302,715.77 and 61,550.37 is: 92,339.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,780.81 : 302,715.77 = 61,550.37 : x
  2. Step 2: Convert to fraction form
    201,780.81/302,715.77 = 61,550.37/x
  3. Step 3: Cross multiply
    201,780.81x = 302,715.77 × 61,550.37
  4. Step 4: Simplify right side
    201,780.81x = 18,632,267,340.58
  5. Step 5: Solve for x
    x = 18,632,267,340.58/201,780.81
  6. Step 6: Final answer
    x = 92,339.14

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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.