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Finding the Fourth Proportional to 88,317, 121,882.86 and 50,080.14

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Solution

The fourth proportional to 88,317, 121,882.86 and 50,080.14 is: 69,113.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,317 : 121,882.86 = 50,080.14 : x
  2. Step 2: Convert to fraction form
    88,317/121,882.86 = 50,080.14/x
  3. Step 3: Cross multiply
    88,317x = 121,882.86 × 50,080.14
  4. Step 4: Simplify right side
    88,317x = 6,103,910,692.40
  5. Step 5: Solve for x
    x = 6,103,910,692.40/88,317
  6. Step 6: Final answer
    x = 69,113.66

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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.