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Finding the Fourth Proportional to 76,773.86, 115,160.80 and 29,993.94

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Solution

The fourth proportional to 76,773.86, 115,160.80 and 29,993.94 is: 44,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,773.86 : 115,160.80 = 29,993.94 : x
  2. Step 2: Convert to fraction form
    76,773.86/115,160.80 = 29,993.94/x
  3. Step 3: Cross multiply
    76,773.86x = 115,160.80 × 29,993.94
  4. Step 4: Simplify right side
    76,773.86x = 3,454,126,125.55
  5. Step 5: Solve for x
    x = 3,454,126,125.55/76,773.86
  6. Step 6: Final answer
    x = 44,990.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.