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Finding the Fourth Proportional to 111,098.88, 166,630.40 and 41,011.20

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Solution

The fourth proportional to 111,098.88, 166,630.40 and 41,011.20 is: 61,510.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,098.88 : 166,630.40 = 41,011.20 : x
  2. Step 2: Convert to fraction form
    111,098.88/166,630.40 = 41,011.20/x
  3. Step 3: Cross multiply
    111,098.88x = 166,630.40 × 41,011.20
  4. Step 4: Simplify right side
    111,098.88x = 6,833,712,660.48
  5. Step 5: Solve for x
    x = 6,833,712,660.48/111,098.88
  6. Step 6: Final answer
    x = 61,510.18

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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.