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Finding the Fourth Proportional to 209,580.57, 289,221.20 and 114,087.96

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Solution

The fourth proportional to 209,580.57, 289,221.20 and 114,087.96 is: 157,441.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,580.57 : 289,221.20 = 114,087.96 : x
  2. Step 2: Convert to fraction form
    209,580.57/289,221.20 = 114,087.96/x
  3. Step 3: Cross multiply
    209,580.57x = 289,221.20 × 114,087.96
  4. Step 4: Simplify right side
    209,580.57x = 32,996,656,696.75
  5. Step 5: Solve for x
    x = 32,996,656,696.75/209,580.57
  6. Step 6: Final answer
    x = 157,441.39

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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.