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Finding the Fourth Proportional to 209,847.30, 289,580.83 and 114,351.94

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Solution

The fourth proportional to 209,847.30, 289,580.83 and 114,351.94 is: 157,801.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,847.30 : 289,580.83 = 114,351.94 : x
  2. Step 2: Convert to fraction form
    209,847.30/289,580.83 = 114,351.94/x
  3. Step 3: Cross multiply
    209,847.30x = 289,580.83 × 114,351.94
  4. Step 4: Simplify right side
    209,847.30x = 33,114,129,697.31
  5. Step 5: Solve for x
    x = 33,114,129,697.31/209,847.30
  6. Step 6: Final answer
    x = 157,801.08

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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.