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Finding the Fourth Proportional to 88,998.76, 122,815.86 and 54,993.64

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Solution

The fourth proportional to 88,998.76, 122,815.86 and 54,993.64 is: 75,889.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,998.76 : 122,815.86 = 54,993.64 : x
  2. Step 2: Convert to fraction form
    88,998.76/122,815.86 = 54,993.64/x
  3. Step 3: Cross multiply
    88,998.76x = 122,815.86 × 54,993.64
  4. Step 4: Simplify right side
    88,998.76x = 6,754,091,191.13
  5. Step 5: Solve for x
    x = 6,754,091,191.13/88,998.76
  6. Step 6: Final answer
    x = 75,889.72

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1.5x scale

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.