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Finding the Fourth Proportional to 273,194.54, 409,864.77 and 86,209.58

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Solution

The fourth proportional to 273,194.54, 409,864.77 and 86,209.58 is: 129,337.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,194.54 : 409,864.77 = 86,209.58 : x
  2. Step 2: Convert to fraction form
    273,194.54/409,864.77 = 86,209.58/x
  3. Step 3: Cross multiply
    273,194.54x = 409,864.77 × 86,209.58
  4. Step 4: Simplify right side
    273,194.54x = 35,334,269,678.50
  5. Step 5: Solve for x
    x = 35,334,269,678.50/273,194.54
  6. Step 6: Final answer
    x = 129,337.39

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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.