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Finding the Fourth Proportional to 79,806.46, 110,177.86 and 52,985.60

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Solution

The fourth proportional to 79,806.46, 110,177.86 and 52,985.60 is: 73,149.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,806.46 : 110,177.86 = 52,985.60 : x
  2. Step 2: Convert to fraction form
    79,806.46/110,177.86 = 52,985.60/x
  3. Step 3: Cross multiply
    79,806.46x = 110,177.86 × 52,985.60
  4. Step 4: Simplify right side
    79,806.46x = 5,837,840,018.82
  5. Step 5: Solve for x
    x = 5,837,840,018.82/79,806.46
  6. Step 6: Final answer
    x = 73,149.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.