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Finding the Fourth Proportional to 135,722.01, 203,513.43 and 71,714.52

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Solution

The fourth proportional to 135,722.01, 203,513.43 and 71,714.52 is: 107,535.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,722.01 : 203,513.43 = 71,714.52 : x
  2. Step 2: Convert to fraction form
    135,722.01/203,513.43 = 71,714.52/x
  3. Step 3: Cross multiply
    135,722.01x = 203,513.43 × 71,714.52
  4. Step 4: Simplify right side
    135,722.01x = 14,594,867,946.00
  5. Step 5: Solve for x
    x = 14,594,867,946.00/135,722.01
  6. Step 6: Final answer
    x = 107,535.01

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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.