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Finding the Fourth Proportional to 172,853.69, 259,266.66 and 58,991.76

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Solution

The fourth proportional to 172,853.69, 259,266.66 and 58,991.76 is: 88,482.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,853.69 : 259,266.66 = 58,991.76 : x
  2. Step 2: Convert to fraction form
    172,853.69/259,266.66 = 58,991.76/x
  3. Step 3: Cross multiply
    172,853.69x = 259,266.66 × 58,991.76
  4. Step 4: Simplify right side
    172,853.69x = 15,294,594,991.43
  5. Step 5: Solve for x
    x = 15,294,594,991.43/172,853.69
  6. Step 6: Final answer
    x = 88,482.90

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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.