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Finding the Fourth Proportional to 117,009.56, 161,472.49 and 63,294.41

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Solution

The fourth proportional to 117,009.56, 161,472.49 and 63,294.41 is: 87,345.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,009.56 : 161,472.49 = 63,294.41 : x
  2. Step 2: Convert to fraction form
    117,009.56/161,472.49 = 63,294.41/x
  3. Step 3: Cross multiply
    117,009.56x = 161,472.49 × 63,294.41
  4. Step 4: Simplify right side
    117,009.56x = 10,220,306,231.23
  5. Step 5: Solve for x
    x = 10,220,306,231.23/117,009.56
  6. Step 6: Final answer
    x = 87,345.91

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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.