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Finding the Fourth Proportional to 230,926.80, 346,390.20 and 220,101.15

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Solution

The fourth proportional to 230,926.80, 346,390.20 and 220,101.15 is: 330,151.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,926.80 : 346,390.20 = 220,101.15 : x
  2. Step 2: Convert to fraction form
    230,926.80/346,390.20 = 220,101.15/x
  3. Step 3: Cross multiply
    230,926.80x = 346,390.20 × 220,101.15
  4. Step 4: Simplify right side
    230,926.80x = 76,240,881,368.73
  5. Step 5: Solve for x
    x = 76,240,881,368.73/230,926.80
  6. Step 6: Final answer
    x = 330,151.73

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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.