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Finding the Fourth Proportional to 58,890.38, 88,363.91 and 29,310.80

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Solution

The fourth proportional to 58,890.38, 88,363.91 and 29,310.80 is: 43,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,890.38 : 88,363.91 = 29,310.80 : x
  2. Step 2: Convert to fraction form
    58,890.38/88,363.91 = 29,310.80/x
  3. Step 3: Cross multiply
    58,890.38x = 88,363.91 × 29,310.80
  4. Step 4: Simplify right side
    58,890.38x = 2,590,016,524.69
  5. Step 5: Solve for x
    x = 2,590,016,524.69/58,890.38
  6. Step 6: Final answer
    x = 43,980.30

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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.