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Finding the Fourth Proportional to 113,447.52, 170,182.92 and 43,385.76

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Solution

The fourth proportional to 113,447.52, 170,182.92 and 43,385.76 is: 65,083.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,447.52 : 170,182.92 = 43,385.76 : x
  2. Step 2: Convert to fraction form
    113,447.52/170,182.92 = 43,385.76/x
  3. Step 3: Cross multiply
    113,447.52x = 170,182.92 × 43,385.76
  4. Step 4: Simplify right side
    113,447.52x = 7,383,515,323.22
  5. Step 5: Solve for x
    x = 7,383,515,323.22/113,447.52
  6. Step 6: Final answer
    x = 65,083.09

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1.5x scale

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.