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Finding the Fourth Proportional to 173,007.80, 259,463.10 and 54,715.40

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Solution

The fourth proportional to 173,007.80, 259,463.10 and 54,715.40 is: 82,057.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,007.80 : 259,463.10 = 54,715.40 : x
  2. Step 2: Convert to fraction form
    173,007.80/259,463.10 = 54,715.40/x
  3. Step 3: Cross multiply
    173,007.80x = 259,463.10 × 54,715.40
  4. Step 4: Simplify right side
    173,007.80x = 14,196,627,301.74
  5. Step 5: Solve for x
    x = 14,196,627,301.74/173,007.80
  6. Step 6: Final answer
    x = 82,057.73

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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.