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Finding the Fourth Proportional to 88,305.74, 121,853.19 and 50,057.74

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Solution

The fourth proportional to 88,305.74, 121,853.19 and 50,057.74 is: 69,074.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,305.74 : 121,853.19 = 50,057.74 : x
  2. Step 2: Convert to fraction form
    88,305.74/121,853.19 = 50,057.74/x
  3. Step 3: Cross multiply
    88,305.74x = 121,853.19 × 50,057.74
  4. Step 4: Simplify right side
    88,305.74x = 6,099,695,303.19
  5. Step 5: Solve for x
    x = 6,099,695,303.19/88,305.74
  6. Step 6: Final answer
    x = 69,074.73

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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.