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Finding the Fourth Proportional to 173,641.80, 260,025.30 and 138,649.80

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Solution

The fourth proportional to 173,641.80, 260,025.30 and 138,649.80 is: 207,625.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,641.80 : 260,025.30 = 138,649.80 : x
  2. Step 2: Convert to fraction form
    173,641.80/260,025.30 = 138,649.80/x
  3. Step 3: Cross multiply
    173,641.80x = 260,025.30 × 138,649.80
  4. Step 4: Simplify right side
    173,641.80x = 36,052,455,839.94
  5. Step 5: Solve for x
    x = 36,052,455,839.94/173,641.80
  6. Step 6: Final answer
    x = 207,625.44

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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.