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Finding the Fourth Proportional to 58,784.20, 88,046.70 and 51,008.20

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Solution

The fourth proportional to 58,784.20, 88,046.70 and 51,008.20 is: 76,399.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,784.20 : 88,046.70 = 51,008.20 : x
  2. Step 2: Convert to fraction form
    58,784.20/88,046.70 = 51,008.20/x
  3. Step 3: Cross multiply
    58,784.20x = 88,046.70 × 51,008.20
  4. Step 4: Simplify right side
    58,784.20x = 4,491,103,682.94
  5. Step 5: Solve for x
    x = 4,491,103,682.94/58,784.20
  6. Step 6: Final answer
    x = 76,399.84

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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.