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Finding the Fourth Proportional to 243,016.70, 364,525.05 and 131,042.30

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Solution

The fourth proportional to 243,016.70, 364,525.05 and 131,042.30 is: 196,563.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,016.70 : 364,525.05 = 131,042.30 : x
  2. Step 2: Convert to fraction form
    243,016.70/364,525.05 = 131,042.30/x
  3. Step 3: Cross multiply
    243,016.70x = 364,525.05 × 131,042.30
  4. Step 4: Simplify right side
    243,016.70x = 47,768,200,959.62
  5. Step 5: Solve for x
    x = 47,768,200,959.62/243,016.70
  6. Step 6: Final answer
    x = 196,563.45

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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.