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Finding the Fourth Proportional to 201,927.80, 302,891.70 and 61,668.20

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Solution

The fourth proportional to 201,927.80, 302,891.70 and 61,668.20 is: 92,502.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,927.80 : 302,891.70 = 61,668.20 : x
  2. Step 2: Convert to fraction form
    201,927.80/302,891.70 = 61,668.20/x
  3. Step 3: Cross multiply
    201,927.80x = 302,891.70 × 61,668.20
  4. Step 4: Simplify right side
    201,927.80x = 18,678,785,933.94
  5. Step 5: Solve for x
    x = 18,678,785,933.94/201,927.80
  6. Step 6: Final answer
    x = 92,502.30

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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.