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Finding the Fourth Proportional to 71,292.63, 98,164.26 and 63,321.03

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Solution

The fourth proportional to 71,292.63, 98,164.26 and 63,321.03 is: 87,188.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,292.63 : 98,164.26 = 63,321.03 : x
  2. Step 2: Convert to fraction form
    71,292.63/98,164.26 = 63,321.03/x
  3. Step 3: Cross multiply
    71,292.63x = 98,164.26 × 63,321.03
  4. Step 4: Simplify right side
    71,292.63x = 6,215,862,052.39
  5. Step 5: Solve for x
    x = 6,215,862,052.39/71,292.63
  6. Step 6: Final answer
    x = 87,188.00

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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.