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Finding the Fourth Proportional to 79,852.15, 119,861.30 and 58,815.94

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Solution

The fourth proportional to 79,852.15, 119,861.30 and 58,815.94 is: 88,285.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,852.15 : 119,861.30 = 58,815.94 : x
  2. Step 2: Convert to fraction form
    79,852.15/119,861.30 = 58,815.94/x
  3. Step 3: Cross multiply
    79,852.15x = 119,861.30 × 58,815.94
  4. Step 4: Simplify right side
    79,852.15x = 7,049,755,029.12
  5. Step 5: Solve for x
    x = 7,049,755,029.12/79,852.15
  6. Step 6: Final answer
    x = 88,285.10

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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.