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Finding the Fourth Proportional to 221,918.62, 332,880.36 and 64,148.44

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Solution

The fourth proportional to 221,918.62, 332,880.36 and 64,148.44 is: 96,223.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,918.62 : 332,880.36 = 64,148.44 : x
  2. Step 2: Convert to fraction form
    221,918.62/332,880.36 = 64,148.44/x
  3. Step 3: Cross multiply
    221,918.62x = 332,880.36 × 64,148.44
  4. Step 4: Simplify right side
    221,918.62x = 21,353,754,968.44
  5. Step 5: Solve for x
    x = 21,353,754,968.44/221,918.62
  6. Step 6: Final answer
    x = 96,223.36

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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.