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Finding the Fourth Proportional to 71,466.91, 98,664.68 and 48,838.75

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Solution

The fourth proportional to 71,466.91, 98,664.68 and 48,838.75 is: 67,425.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,466.91 : 98,664.68 = 48,838.75 : x
  2. Step 2: Convert to fraction form
    71,466.91/98,664.68 = 48,838.75/x
  3. Step 3: Cross multiply
    71,466.91x = 98,664.68 × 48,838.75
  4. Step 4: Simplify right side
    71,466.91x = 4,818,659,515.79
  5. Step 5: Solve for x
    x = 4,818,659,515.79/71,466.91
  6. Step 6: Final answer
    x = 67,425.05

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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.