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Finding the Fourth Proportional to 172,330.59, 237,813.93 and 96,879.09

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Solution

The fourth proportional to 172,330.59, 237,813.93 and 96,879.09 is: 133,691.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,330.59 : 237,813.93 = 96,879.09 : x
  2. Step 2: Convert to fraction form
    172,330.59/237,813.93 = 96,879.09/x
  3. Step 3: Cross multiply
    172,330.59x = 237,813.93 × 96,879.09
  4. Step 4: Simplify right side
    172,330.59x = 23,039,197,127.72
  5. Step 5: Solve for x
    x = 23,039,197,127.72/172,330.59
  6. Step 6: Final answer
    x = 133,691.86

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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.