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Finding the Fourth Proportional to 76,366.90, 105,440.97 and 50,933.32

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Solution

The fourth proportional to 76,366.90, 105,440.97 and 50,933.32 is: 70,324.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,366.90 : 105,440.97 = 50,933.32 : x
  2. Step 2: Convert to fraction form
    76,366.90/105,440.97 = 50,933.32/x
  3. Step 3: Cross multiply
    76,366.90x = 105,440.97 × 50,933.32
  4. Step 4: Simplify right side
    76,366.90x = 5,370,458,666.12
  5. Step 5: Solve for x
    x = 5,370,458,666.12/76,366.90
  6. Step 6: Final answer
    x = 70,324.43

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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.