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Finding the Fourth Proportional to 71,106.66, 98,166.46 and 48,478.73

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Solution

The fourth proportional to 71,106.66, 98,166.46 and 48,478.73 is: 66,927.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,106.66 : 98,166.46 = 48,478.73 : x
  2. Step 2: Convert to fraction form
    71,106.66/98,166.46 = 48,478.73/x
  3. Step 3: Cross multiply
    71,106.66x = 98,166.46 × 48,478.73
  4. Step 4: Simplify right side
    71,106.66x = 4,758,984,928.01
  5. Step 5: Solve for x
    x = 4,758,984,928.01/71,106.66
  6. Step 6: Final answer
    x = 66,927.41

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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.