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Finding the Fourth Proportional to 221,806.62, 332,946.72 and 95,509.40

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Solution

The fourth proportional to 221,806.62, 332,946.72 and 95,509.40 is: 143,366.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,806.62 : 332,946.72 = 95,509.40 : x
  2. Step 2: Convert to fraction form
    221,806.62/332,946.72 = 95,509.40/x
  3. Step 3: Cross multiply
    221,806.62x = 332,946.72 × 95,509.40
  4. Step 4: Simplify right side
    221,806.62x = 31,799,539,794.43
  5. Step 5: Solve for x
    x = 31,799,539,794.43/221,806.62
  6. Step 6: Final answer
    x = 143,366.05

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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.