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Finding the Fourth Proportional to 173,069.80, 259,612.80 and 54,750.40

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Solution

The fourth proportional to 173,069.80, 259,612.80 and 54,750.40 is: 82,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,069.80 : 259,612.80 = 54,750.40 : x
  2. Step 2: Convert to fraction form
    173,069.80/259,612.80 = 54,750.40/x
  3. Step 3: Cross multiply
    173,069.80x = 259,612.80 × 54,750.40
  4. Step 4: Simplify right side
    173,069.80x = 14,213,904,645.12
  5. Step 5: Solve for x
    x = 14,213,904,645.12/173,069.80
  6. Step 6: Final answer
    x = 82,128.16

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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.