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Finding the Fourth Proportional to 221,802.60, 332,989.92 and 190,414.38

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Solution

The fourth proportional to 221,802.60, 332,989.92 and 190,414.38 is: 285,867.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,802.60 : 332,989.92 = 190,414.38 : x
  2. Step 2: Convert to fraction form
    221,802.60/332,989.92 = 190,414.38/x
  3. Step 3: Cross multiply
    221,802.60x = 332,989.92 × 190,414.38
  4. Step 4: Simplify right side
    221,802.60x = 63,406,069,163.05
  5. Step 5: Solve for x
    x = 63,406,069,163.05/221,802.60
  6. Step 6: Final answer
    x = 285,867.11

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1.5x scale

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.