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Finding the Fourth Proportional to 236,511, 354,555.48 and 86,716.28

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Solution

The fourth proportional to 236,511, 354,555.48 and 86,716.28 is: 129,997.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,511 : 354,555.48 = 86,716.28 : x
  2. Step 2: Convert to fraction form
    236,511/354,555.48 = 86,716.28/x
  3. Step 3: Cross multiply
    236,511x = 354,555.48 × 86,716.28
  4. Step 4: Simplify right side
    236,511x = 30,745,732,279.21
  5. Step 5: Solve for x
    x = 30,745,732,279.21/236,511
  6. Step 6: Final answer
    x = 129,997.05

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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.