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Finding the Fourth Proportional to 50,872.32, 70,168.32 and 49,159.68

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Solution

The fourth proportional to 50,872.32, 70,168.32 and 49,159.68 is: 67,806.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,872.32 : 70,168.32 = 49,159.68 : x
  2. Step 2: Convert to fraction form
    50,872.32/70,168.32 = 49,159.68/x
  3. Step 3: Cross multiply
    50,872.32x = 70,168.32 × 49,159.68
  4. Step 4: Simplify right side
    50,872.32x = 3,449,452,157.34
  5. Step 5: Solve for x
    x = 3,449,452,157.34/50,872.32
  6. Step 6: Final answer
    x = 67,806.07

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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.