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Finding the Fourth Proportional to 71,894.55, 107,853.71 and 32,450.79

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Solution

The fourth proportional to 71,894.55, 107,853.71 and 32,450.79 is: 48,681.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,894.55 : 107,853.71 = 32,450.79 : x
  2. Step 2: Convert to fraction form
    71,894.55/107,853.71 = 32,450.79/x
  3. Step 3: Cross multiply
    71,894.55x = 107,853.71 × 32,450.79
  4. Step 4: Simplify right side
    71,894.55x = 3,499,937,931.68
  5. Step 5: Solve for x
    x = 3,499,937,931.68/71,894.55
  6. Step 6: Final answer
    x = 48,681.55

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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.