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Finding the Fourth Proportional to 172,446.55, 237,984.03 and 96,995.05

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Solution

The fourth proportional to 172,446.55, 237,984.03 and 96,995.05 is: 133,857.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,446.55 : 237,984.03 = 96,995.05 : x
  2. Step 2: Convert to fraction form
    172,446.55/237,984.03 = 96,995.05/x
  3. Step 3: Cross multiply
    172,446.55x = 237,984.03 × 96,995.05
  4. Step 4: Simplify right side
    172,446.55x = 23,083,272,404.08
  5. Step 5: Solve for x
    x = 23,083,272,404.08/172,446.55
  6. Step 6: Final answer
    x = 133,857.55

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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.