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Finding the Fourth Proportional to 88,989.78, 122,805.96 and 48,703.56

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Solution

The fourth proportional to 88,989.78, 122,805.96 and 48,703.56 is: 67,210.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,989.78 : 122,805.96 = 48,703.56 : x
  2. Step 2: Convert to fraction form
    88,989.78/122,805.96 = 48,703.56/x
  3. Step 3: Cross multiply
    88,989.78x = 122,805.96 × 48,703.56
  4. Step 4: Simplify right side
    88,989.78x = 5,981,087,441.22
  5. Step 5: Solve for x
    x = 5,981,087,441.22/88,989.78
  6. Step 6: Final answer
    x = 67,210.95

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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.