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Finding the Fourth Proportional to 98,292.74, 135,565.97 and 63,799.77

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Solution

The fourth proportional to 98,292.74, 135,565.97 and 63,799.77 is: 87,993.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,292.74 : 135,565.97 = 63,799.77 : x
  2. Step 2: Convert to fraction form
    98,292.74/135,565.97 = 63,799.77/x
  3. Step 3: Cross multiply
    98,292.74x = 135,565.97 × 63,799.77
  4. Step 4: Simplify right side
    98,292.74x = 8,649,077,211.16
  5. Step 5: Solve for x
    x = 8,649,077,211.16/98,292.74
  6. Step 6: Final answer
    x = 87,993.04

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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.