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Finding the Fourth Proportional to 161,545.61, 222,940.33 and 89,930.21

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Solution

The fourth proportional to 161,545.61, 222,940.33 and 89,930.21 is: 124,107.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,545.61 : 222,940.33 = 89,930.21 : x
  2. Step 2: Convert to fraction form
    161,545.61/222,940.33 = 89,930.21/x
  3. Step 3: Cross multiply
    161,545.61x = 222,940.33 × 89,930.21
  4. Step 4: Simplify right side
    161,545.61x = 20,049,069,354.84
  5. Step 5: Solve for x
    x = 20,049,069,354.84/161,545.61
  6. Step 6: Final answer
    x = 124,107.79

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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.