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Finding the Fourth Proportional to 236,638.59, 354,747.36 and 86,844.58

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Solution

The fourth proportional to 236,638.59, 354,747.36 and 86,844.58 is: 130,189.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,638.59 : 354,747.36 = 86,844.58 : x
  2. Step 2: Convert to fraction form
    236,638.59/354,747.36 = 86,844.58/x
  3. Step 3: Cross multiply
    236,638.59x = 354,747.36 × 86,844.58
  4. Step 4: Simplify right side
    236,638.59x = 30,807,885,485.31
  5. Step 5: Solve for x
    x = 30,807,885,485.31/236,638.59
  6. Step 6: Final answer
    x = 130,189.61

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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.