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Finding the Fourth Proportional to 169,241.98, 253,862.97 and 86,194.30

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Solution

The fourth proportional to 169,241.98, 253,862.97 and 86,194.30 is: 129,291.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,241.98 : 253,862.97 = 86,194.30 : x
  2. Step 2: Convert to fraction form
    169,241.98/253,862.97 = 86,194.30/x
  3. Step 3: Cross multiply
    169,241.98x = 253,862.97 × 86,194.30
  4. Step 4: Simplify right side
    169,241.98x = 21,881,540,995.07
  5. Step 5: Solve for x
    x = 21,881,540,995.07/169,241.98
  6. Step 6: Final answer
    x = 129,291.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.