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Finding the Fourth Proportional to 172,494.45, 238,042.08 and 97,042.95

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Solution

The fourth proportional to 172,494.45, 238,042.08 and 97,042.95 is: 133,919.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,494.45 : 238,042.08 = 97,042.95 : x
  2. Step 2: Convert to fraction form
    172,494.45/238,042.08 = 97,042.95/x
  3. Step 3: Cross multiply
    172,494.45x = 238,042.08 × 97,042.95
  4. Step 4: Simplify right side
    172,494.45x = 23,100,305,667.34
  5. Step 5: Solve for x
    x = 23,100,305,667.34/172,494.45
  6. Step 6: Final answer
    x = 133,919.12

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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.