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Finding the Fourth Proportional to 101,103.60, 151,780.20 and 63,663.60

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Solution

The fourth proportional to 101,103.60, 151,780.20 and 63,663.60 is: 95,573.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,103.60 : 151,780.20 = 63,663.60 : x
  2. Step 2: Convert to fraction form
    101,103.60/151,780.20 = 63,663.60/x
  3. Step 3: Cross multiply
    101,103.60x = 151,780.20 × 63,663.60
  4. Step 4: Simplify right side
    101,103.60x = 9,662,873,940.72
  5. Step 5: Solve for x
    x = 9,662,873,940.72/101,103.60
  6. Step 6: Final answer
    x = 95,573.98

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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.