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Finding the Fourth Proportional to 71,581.65, 98,793.45 and 51,504.99

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Solution

The fourth proportional to 71,581.65, 98,793.45 and 51,504.99 is: 71,084.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,581.65 : 98,793.45 = 51,504.99 : x
  2. Step 2: Convert to fraction form
    71,581.65/98,793.45 = 51,504.99/x
  3. Step 3: Cross multiply
    71,581.65x = 98,793.45 × 51,504.99
  4. Step 4: Simplify right side
    71,581.65x = 5,088,355,654.32
  5. Step 5: Solve for x
    x = 5,088,355,654.32/71,581.65
  6. Step 6: Final answer
    x = 71,084.64

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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.