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Finding the Fourth Proportional to 236,171.54, 354,220.80 and 86,376.80

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Solution

The fourth proportional to 236,171.54, 354,220.80 and 86,376.80 is: 129,551.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,171.54 : 354,220.80 = 86,376.80 : x
  2. Step 2: Convert to fraction form
    236,171.54/354,220.80 = 86,376.80/x
  3. Step 3: Cross multiply
    236,171.54x = 354,220.80 × 86,376.80
  4. Step 4: Simplify right side
    236,171.54x = 30,596,459,759.08
  5. Step 5: Solve for x
    x = 30,596,459,759.08/236,171.54
  6. Step 6: Final answer
    x = 129,551.85

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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.