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Finding the Fourth Proportional to 58,196.60, 87,218.10 and 51,591.80

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Solution

The fourth proportional to 58,196.60, 87,218.10 and 51,591.80 is: 77,319.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,196.60 : 87,218.10 = 51,591.80 : x
  2. Step 2: Convert to fraction form
    58,196.60/87,218.10 = 51,591.80/x
  3. Step 3: Cross multiply
    58,196.60x = 87,218.10 × 51,591.80
  4. Step 4: Simplify right side
    58,196.60x = 4,499,738,771.58
  5. Step 5: Solve for x
    x = 4,499,738,771.58/58,196.60
  6. Step 6: Final answer
    x = 77,319.62

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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.