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Finding the Fourth Proportional to 200,920.40, 301,726.20 and 194,699.60

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Solution

The fourth proportional to 200,920.40, 301,726.20 and 194,699.60 is: 292,384.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,920.40 : 301,726.20 = 194,699.60 : x
  2. Step 2: Convert to fraction form
    200,920.40/301,726.20 = 194,699.60/x
  3. Step 3: Cross multiply
    200,920.40x = 301,726.20 × 194,699.60
  4. Step 4: Simplify right side
    200,920.40x = 58,745,970,449.52
  5. Step 5: Solve for x
    x = 58,745,970,449.52/200,920.40
  6. Step 6: Final answer
    x = 292,384.30

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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.