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Finding the Fourth Proportional to 172,490.91, 238,037.04 and 97,039.41

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Solution

The fourth proportional to 172,490.91, 238,037.04 and 97,039.41 is: 133,914.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,490.91 : 238,037.04 = 97,039.41 : x
  2. Step 2: Convert to fraction form
    172,490.91/238,037.04 = 97,039.41/x
  3. Step 3: Cross multiply
    172,490.91x = 238,037.04 × 97,039.41
  4. Step 4: Simplify right side
    172,490.91x = 23,098,973,919.75
  5. Step 5: Solve for x
    x = 23,098,973,919.75/172,490.91
  6. Step 6: Final answer
    x = 133,914.15

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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.