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Finding the Fourth Proportional to 221,730.96, 332,510.16 and 71,935.02

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Solution

The fourth proportional to 221,730.96, 332,510.16 and 71,935.02 is: 107,874.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,730.96 : 332,510.16 = 71,935.02 : x
  2. Step 2: Convert to fraction form
    221,730.96/332,510.16 = 71,935.02/x
  3. Step 3: Cross multiply
    221,730.96x = 332,510.16 × 71,935.02
  4. Step 4: Simplify right side
    221,730.96x = 23,919,125,009.80
  5. Step 5: Solve for x
    x = 23,919,125,009.80/221,730.96
  6. Step 6: Final answer
    x = 107,874.54

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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.