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Finding the Fourth Proportional to 173,107.70, 259,661.55 and 54,788.30

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Solution

The fourth proportional to 173,107.70, 259,661.55 and 54,788.30 is: 82,182.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,107.70 : 259,661.55 = 54,788.30 : x
  2. Step 2: Convert to fraction form
    173,107.70/259,661.55 = 54,788.30/x
  3. Step 3: Cross multiply
    173,107.70x = 259,661.55 × 54,788.30
  4. Step 4: Simplify right side
    173,107.70x = 14,226,414,899.87
  5. Step 5: Solve for x
    x = 14,226,414,899.87/173,107.70
  6. Step 6: Final answer
    x = 82,182.45

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1.5x scale

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.