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Finding the Fourth Proportional to 73,845.90, 110,655.45 and 55,037.70

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Solution

The fourth proportional to 73,845.90, 110,655.45 and 55,037.70 is: 82,472.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,845.90 : 110,655.45 = 55,037.70 : x
  2. Step 2: Convert to fraction form
    73,845.90/110,655.45 = 55,037.70/x
  3. Step 3: Cross multiply
    73,845.90x = 110,655.45 × 55,037.70
  4. Step 4: Simplify right side
    73,845.90x = 6,090,221,460.47
  5. Step 5: Solve for x
    x = 6,090,221,460.47/73,845.90
  6. Step 6: Final answer
    x = 82,472.03

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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.