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Finding the Fourth Proportional to 71,784.99, 99,068.58 and 41,580.09

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Solution

The fourth proportional to 71,784.99, 99,068.58 and 41,580.09 is: 57,383.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,784.99 : 99,068.58 = 41,580.09 : x
  2. Step 2: Convert to fraction form
    71,784.99/99,068.58 = 41,580.09/x
  3. Step 3: Cross multiply
    71,784.99x = 99,068.58 × 41,580.09
  4. Step 4: Simplify right side
    71,784.99x = 4,119,280,472.57
  5. Step 5: Solve for x
    x = 4,119,280,472.57/71,784.99
  6. Step 6: Final answer
    x = 57,383.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.