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Finding the Fourth Proportional to 68,397.81, 102,632.83 and 48,535.66

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Solution

The fourth proportional to 68,397.81, 102,632.83 and 48,535.66 is: 72,829.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,397.81 : 102,632.83 = 48,535.66 : x
  2. Step 2: Convert to fraction form
    68,397.81/102,632.83 = 48,535.66/x
  3. Step 3: Cross multiply
    68,397.81x = 102,632.83 × 48,535.66
  4. Step 4: Simplify right side
    68,397.81x = 4,981,352,141.72
  5. Step 5: Solve for x
    x = 4,981,352,141.72/68,397.81
  6. Step 6: Final answer
    x = 72,829.12

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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.