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Finding the Fourth Proportional to 97,080.35, 133,856.26 and 66,468.29

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Solution

The fourth proportional to 97,080.35, 133,856.26 and 66,468.29 is: 91,647.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,080.35 : 133,856.26 = 66,468.29 : x
  2. Step 2: Convert to fraction form
    97,080.35/133,856.26 = 66,468.29/x
  3. Step 3: Cross multiply
    97,080.35x = 133,856.26 × 66,468.29
  4. Step 4: Simplify right side
    97,080.35x = 8,897,196,876.47
  5. Step 5: Solve for x
    x = 8,897,196,876.47/97,080.35
  6. Step 6: Final answer
    x = 91,647.76

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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.