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Finding the Fourth Proportional to 71,069.25, 98,073.04 and 39,238.08

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Solution

The fourth proportional to 71,069.25, 98,073.04 and 39,238.08 is: 54,147.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,069.25 : 98,073.04 = 39,238.08 : x
  2. Step 2: Convert to fraction form
    71,069.25/98,073.04 = 39,238.08/x
  3. Step 3: Cross multiply
    71,069.25x = 98,073.04 × 39,238.08
  4. Step 4: Simplify right side
    71,069.25x = 3,848,197,789.36
  5. Step 5: Solve for x
    x = 3,848,197,789.36/71,069.25
  6. Step 6: Final answer
    x = 54,147.16

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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.