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Finding the Fourth Proportional to 92,707.59, 138,978.87 and 33,530.11

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Solution

The fourth proportional to 92,707.59, 138,978.87 and 33,530.11 is: 50,265.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,707.59 : 138,978.87 = 33,530.11 : x
  2. Step 2: Convert to fraction form
    92,707.59/138,978.87 = 33,530.11/x
  3. Step 3: Cross multiply
    92,707.59x = 138,978.87 × 33,530.11
  4. Step 4: Simplify right side
    92,707.59x = 4,659,976,798.78
  5. Step 5: Solve for x
    x = 4,659,976,798.78/92,707.59
  6. Step 6: Final answer
    x = 50,265.32

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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.