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Finding the Fourth Proportional to 173,035.71, 259,527.65 and 143,642.43

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Solution

The fourth proportional to 173,035.71, 259,527.65 and 143,642.43 is: 215,442.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,035.71 : 259,527.65 = 143,642.43 : x
  2. Step 2: Convert to fraction form
    173,035.71/259,527.65 = 143,642.43/x
  3. Step 3: Cross multiply
    173,035.71x = 259,527.65 × 143,642.43
  4. Step 4: Simplify right side
    173,035.71x = 37,279,181,579.98
  5. Step 5: Solve for x
    x = 37,279,181,579.98/173,035.71
  6. Step 6: Final answer
    x = 215,442.13

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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.