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Finding the Fourth Proportional to 92,009.60, 138,014.24 and 28,834.57

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Solution

The fourth proportional to 92,009.60, 138,014.24 and 28,834.57 is: 43,251.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,009.60 : 138,014.24 = 28,834.57 : x
  2. Step 2: Convert to fraction form
    92,009.60/138,014.24 = 28,834.57/x
  3. Step 3: Cross multiply
    92,009.60x = 138,014.24 × 28,834.57
  4. Step 4: Simplify right side
    92,009.60x = 3,979,580,775.07
  5. Step 5: Solve for x
    x = 3,979,580,775.07/92,009.60
  6. Step 6: Final answer
    x = 43,251.80

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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.