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Finding the Fourth Proportional to 77,179.88, 115,769.70 and 50,693.07

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Solution

The fourth proportional to 77,179.88, 115,769.70 and 50,693.07 is: 76,039.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,179.88 : 115,769.70 = 50,693.07 : x
  2. Step 2: Convert to fraction form
    77,179.88/115,769.70 = 50,693.07/x
  3. Step 3: Cross multiply
    77,179.88x = 115,769.70 × 50,693.07
  4. Step 4: Simplify right side
    77,179.88x = 5,868,721,505.98
  5. Step 5: Solve for x
    x = 5,868,721,505.98/77,179.88
  6. Step 6: Final answer
    x = 76,039.53

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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.