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Finding the Fourth Proportional to 111,003.60, 166,530.01 and 51,806.98

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Solution

The fourth proportional to 111,003.60, 166,530.01 and 51,806.98 is: 77,721.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,003.60 : 166,530.01 = 51,806.98 : x
  2. Step 2: Convert to fraction form
    111,003.60/166,530.01 = 51,806.98/x
  3. Step 3: Cross multiply
    111,003.60x = 166,530.01 × 51,806.98
  4. Step 4: Simplify right side
    111,003.60x = 8,627,416,897.47
  5. Step 5: Solve for x
    x = 8,627,416,897.47/111,003.60
  6. Step 6: Final answer
    x = 77,721.96

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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.