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Finding the Fourth Proportional to 64,471.66, 88,984.82 and 49,197.89

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Solution

The fourth proportional to 64,471.66, 88,984.82 and 49,197.89 is: 67,903.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,471.66 : 88,984.82 = 49,197.89 : x
  2. Step 2: Convert to fraction form
    64,471.66/88,984.82 = 49,197.89/x
  3. Step 3: Cross multiply
    64,471.66x = 88,984.82 × 49,197.89
  4. Step 4: Simplify right side
    64,471.66x = 4,377,865,510.70
  5. Step 5: Solve for x
    x = 4,377,865,510.70/64,471.66
  6. Step 6: Final answer
    x = 67,903.72

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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.