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Finding the Fourth Proportional to 172,473.08, 238,012.47 and 97,021.58

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Solution

The fourth proportional to 172,473.08, 238,012.47 and 97,021.58 is: 133,889.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,473.08 : 238,012.47 = 97,021.58 : x
  2. Step 2: Convert to fraction form
    172,473.08/238,012.47 = 97,021.58/x
  3. Step 3: Cross multiply
    172,473.08x = 238,012.47 × 97,021.58
  4. Step 4: Simplify right side
    172,473.08x = 23,092,344,709.04
  5. Step 5: Solve for x
    x = 23,092,344,709.04/172,473.08
  6. Step 6: Final answer
    x = 133,889.56

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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.