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Finding the Fourth Proportional to 173,041.30, 259,561.95 and 138,049.30

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Solution

The fourth proportional to 173,041.30, 259,561.95 and 138,049.30 is: 207,073.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,041.30 : 259,561.95 = 138,049.30 : x
  2. Step 2: Convert to fraction form
    173,041.30/259,561.95 = 138,049.30/x
  3. Step 3: Cross multiply
    173,041.30x = 259,561.95 × 138,049.30
  4. Step 4: Simplify right side
    173,041.30x = 35,832,345,504.14
  5. Step 5: Solve for x
    x = 35,832,345,504.14/173,041.30
  6. Step 6: Final answer
    x = 207,073.95

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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.