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Finding the Fourth Proportional to 172,339.72, 237,839.76 and 96,893.08

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Solution

The fourth proportional to 172,339.72, 237,839.76 and 96,893.08 is: 133,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,339.72 : 237,839.76 = 96,893.08 : x
  2. Step 2: Convert to fraction form
    172,339.72/237,839.76 = 96,893.08/x
  3. Step 3: Cross multiply
    172,339.72x = 237,839.76 × 96,893.08
  4. Step 4: Simplify right side
    172,339.72x = 23,045,026,892.86
  5. Step 5: Solve for x
    x = 23,045,026,892.86/172,339.72
  6. Step 6: Final answer
    x = 133,718.60

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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.