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Finding the Fourth Proportional to 71,155.02, 98,188.02 and 39,323.91

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Solution

The fourth proportional to 71,155.02, 98,188.02 and 39,323.91 is: 54,263.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,155.02 : 98,188.02 = 39,323.91 : x
  2. Step 2: Convert to fraction form
    71,155.02/98,188.02 = 39,323.91/x
  3. Step 3: Cross multiply
    71,155.02x = 98,188.02 × 39,323.91
  4. Step 4: Simplify right side
    71,155.02x = 3,861,136,861.56
  5. Step 5: Solve for x
    x = 3,861,136,861.56/71,155.02
  6. Step 6: Final answer
    x = 54,263.73

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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.