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Finding the Fourth Proportional to 117,879.33, 176,820.83 and 65,620.97

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Solution

The fourth proportional to 117,879.33, 176,820.83 and 65,620.97 is: 98,432.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,879.33 : 176,820.83 = 65,620.97 : x
  2. Step 2: Convert to fraction form
    117,879.33/176,820.83 = 65,620.97/x
  3. Step 3: Cross multiply
    117,879.33x = 176,820.83 × 65,620.97
  4. Step 4: Simplify right side
    117,879.33x = 11,603,154,380.81
  5. Step 5: Solve for x
    x = 11,603,154,380.81/117,879.33
  6. Step 6: Final answer
    x = 98,432.48

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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.