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Finding the Fourth Proportional to 173,687.91, 260,656.29 and 73,918.20

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Solution

The fourth proportional to 173,687.91, 260,656.29 and 73,918.20 is: 110,930.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,687.91 : 260,656.29 = 73,918.20 : x
  2. Step 2: Convert to fraction form
    173,687.91/260,656.29 = 73,918.20/x
  3. Step 3: Cross multiply
    173,687.91x = 260,656.29 × 73,918.20
  4. Step 4: Simplify right side
    173,687.91x = 19,267,243,775.48
  5. Step 5: Solve for x
    x = 19,267,243,775.48/173,687.91
  6. Step 6: Final answer
    x = 110,930.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.