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Finding the Fourth Proportional to 114,295.50, 157,691.34 and 74,040.12

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Solution

The fourth proportional to 114,295.50, 157,691.34 and 74,040.12 is: 102,151.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,295.50 : 157,691.34 = 74,040.12 : x
  2. Step 2: Convert to fraction form
    114,295.50/157,691.34 = 74,040.12/x
  3. Step 3: Cross multiply
    114,295.50x = 157,691.34 × 74,040.12
  4. Step 4: Simplify right side
    114,295.50x = 11,675,485,736.56
  5. Step 5: Solve for x
    x = 11,675,485,736.56/114,295.50
  6. Step 6: Final answer
    x = 102,151.75

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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.