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Finding the Fourth Proportional to 221,883.90, 332,631.45 and 133,043.10

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Solution

The fourth proportional to 221,883.90, 332,631.45 and 133,043.10 is: 199,448.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,883.90 : 332,631.45 = 133,043.10 : x
  2. Step 2: Convert to fraction form
    221,883.90/332,631.45 = 133,043.10/x
  3. Step 3: Cross multiply
    221,883.90x = 332,631.45 × 133,043.10
  4. Step 4: Simplify right side
    221,883.90x = 44,254,319,265.50
  5. Step 5: Solve for x
    x = 44,254,319,265.50/221,883.90
  6. Step 6: Final answer
    x = 199,448.09

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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.