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Finding the Fourth Proportional to 76,951.74, 106,237.57 and 58,658.85

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Solution

The fourth proportional to 76,951.74, 106,237.57 and 58,658.85 is: 80,982.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,951.74 : 106,237.57 = 58,658.85 : x
  2. Step 2: Convert to fraction form
    76,951.74/106,237.57 = 58,658.85/x
  3. Step 3: Cross multiply
    76,951.74x = 106,237.57 × 58,658.85
  4. Step 4: Simplify right side
    76,951.74x = 6,231,773,682.99
  5. Step 5: Solve for x
    x = 6,231,773,682.99/76,951.74
  6. Step 6: Final answer
    x = 80,982.88

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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.