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Finding the Fourth Proportional to 228,359.90, 315,059.85 and 132,788.00

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Solution

The fourth proportional to 228,359.90, 315,059.85 and 132,788.00 is: 183,202.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,359.90 : 315,059.85 = 132,788.00 : x
  2. Step 2: Convert to fraction form
    228,359.90/315,059.85 = 132,788.00/x
  3. Step 3: Cross multiply
    228,359.90x = 315,059.85 × 132,788.00
  4. Step 4: Simplify right side
    228,359.90x = 41,836,168,149.45
  5. Step 5: Solve for x
    x = 41,836,168,149.45/228,359.90
  6. Step 6: Final answer
    x = 183,202.78

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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.