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Finding the Fourth Proportional to 172,212.86, 237,656.58 and 94,691.76

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Solution

The fourth proportional to 172,212.86, 237,656.58 and 94,691.76 is: 130,676.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,212.86 : 237,656.58 = 94,691.76 : x
  2. Step 2: Convert to fraction form
    172,212.86/237,656.58 = 94,691.76/x
  3. Step 3: Cross multiply
    172,212.86x = 237,656.58 × 94,691.76
  4. Step 4: Simplify right side
    172,212.86x = 22,504,119,835.78
  5. Step 5: Solve for x
    x = 22,504,119,835.78/172,212.86
  6. Step 6: Final answer
    x = 130,676.19

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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.