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Finding the Fourth Proportional to 66,070.52, 91,177.98 and 35,856.10

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Solution

The fourth proportional to 66,070.52, 91,177.98 and 35,856.10 is: 49,481.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,070.52 : 91,177.98 = 35,856.10 : x
  2. Step 2: Convert to fraction form
    66,070.52/91,177.98 = 35,856.10/x
  3. Step 3: Cross multiply
    66,070.52x = 91,177.98 × 35,856.10
  4. Step 4: Simplify right side
    66,070.52x = 3,269,286,654.71
  5. Step 5: Solve for x
    x = 3,269,286,654.71/66,070.52
  6. Step 6: Final answer
    x = 49,481.78

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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.