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Finding the Fourth Proportional to 221,460.72, 332,307.72 and 96,889.20

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Solution

The fourth proportional to 221,460.72, 332,307.72 and 96,889.20 is: 145,384.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,460.72 : 332,307.72 = 96,889.20 : x
  2. Step 2: Convert to fraction form
    221,460.72/332,307.72 = 96,889.20/x
  3. Step 3: Cross multiply
    221,460.72x = 332,307.72 × 96,889.20
  4. Step 4: Simplify right side
    221,460.72x = 32,197,029,144.62
  5. Step 5: Solve for x
    x = 32,197,029,144.62/221,460.72
  6. Step 6: Final answer
    x = 145,384.83

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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.