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Finding the Fourth Proportional to 117,001.37, 161,461.91 and 63,286.37

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Solution

The fourth proportional to 117,001.37, 161,461.91 and 63,286.37 is: 87,335.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,001.37 : 161,461.91 = 63,286.37 : x
  2. Step 2: Convert to fraction form
    117,001.37/161,461.91 = 63,286.37/x
  3. Step 3: Cross multiply
    117,001.37x = 161,461.91 × 63,286.37
  4. Step 4: Simplify right side
    117,001.37x = 10,218,337,528.07
  5. Step 5: Solve for x
    x = 10,218,337,528.07/117,001.37
  6. Step 6: Final answer
    x = 87,335.19

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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.