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Finding the Fourth Proportional to 76,449.70, 114,674.55 and 60,703.30

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Solution

The fourth proportional to 76,449.70, 114,674.55 and 60,703.30 is: 91,054.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,449.70 : 114,674.55 = 60,703.30 : x
  2. Step 2: Convert to fraction form
    76,449.70/114,674.55 = 60,703.30/x
  3. Step 3: Cross multiply
    76,449.70x = 114,674.55 × 60,703.30
  4. Step 4: Simplify right side
    76,449.70x = 6,961,123,611.02
  5. Step 5: Solve for x
    x = 6,961,123,611.02/76,449.70
  6. Step 6: Final answer
    x = 91,054.95

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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.