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Finding the Fourth Proportional to 71,160.02, 98,194.92 and 39,328.92

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Solution

The fourth proportional to 71,160.02, 98,194.92 and 39,328.92 is: 54,270.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,160.02 : 98,194.92 = 39,328.92 : x
  2. Step 2: Convert to fraction form
    71,160.02/98,194.92 = 39,328.92/x
  3. Step 3: Cross multiply
    71,160.02x = 98,194.92 × 39,328.92
  4. Step 4: Simplify right side
    71,160.02x = 3,861,900,153.09
  5. Step 5: Solve for x
    x = 3,861,900,153.09/71,160.02
  6. Step 6: Final answer
    x = 54,270.64

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1.5x scale

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.