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Finding the Fourth Proportional to 152,613.78, 210,601.17 and 84,633.54

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Solution

The fourth proportional to 152,613.78, 210,601.17 and 84,633.54 is: 116,791.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,613.78 : 210,601.17 = 84,633.54 : x
  2. Step 2: Convert to fraction form
    152,613.78/210,601.17 = 84,633.54/x
  3. Step 3: Cross multiply
    152,613.78x = 210,601.17 × 84,633.54
  4. Step 4: Simplify right side
    152,613.78x = 17,823,922,545.24
  5. Step 5: Solve for x
    x = 17,823,922,545.24/152,613.78
  6. Step 6: Final answer
    x = 116,791.04

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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.