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Finding the Fourth Proportional to 222,860.67, 307,545.89 and 120,885.87

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Solution

The fourth proportional to 222,860.67, 307,545.89 and 120,885.87 is: 166,821.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,860.67 : 307,545.89 = 120,885.87 : x
  2. Step 2: Convert to fraction form
    222,860.67/307,545.89 = 120,885.87/x
  3. Step 3: Cross multiply
    222,860.67x = 307,545.89 × 120,885.87
  4. Step 4: Simplify right side
    222,860.67x = 37,177,950,335.42
  5. Step 5: Solve for x
    x = 37,177,950,335.42/222,860.67
  6. Step 6: Final answer
    x = 166,821.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.