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Finding the Fourth Proportional to 92,995.30, 128,334.34 and 50,553.90

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Solution

The fourth proportional to 92,995.30, 128,334.34 and 50,553.90 is: 69,764.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,995.30 : 128,334.34 = 50,553.90 : x
  2. Step 2: Convert to fraction form
    92,995.30/128,334.34 = 50,553.90/x
  3. Step 3: Cross multiply
    92,995.30x = 128,334.34 × 50,553.90
  4. Step 4: Simplify right side
    92,995.30x = 6,487,801,390.93
  5. Step 5: Solve for x
    x = 6,487,801,390.93/92,995.30
  6. Step 6: Final answer
    x = 69,764.83

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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.