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Finding the Fourth Proportional to 136,652.90, 204,979.35 and 131,404.10

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Solution

The fourth proportional to 136,652.90, 204,979.35 and 131,404.10 is: 197,106.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,652.90 : 204,979.35 = 131,404.10 : x
  2. Step 2: Convert to fraction form
    136,652.90/204,979.35 = 131,404.10/x
  3. Step 3: Cross multiply
    136,652.90x = 204,979.35 × 131,404.10
  4. Step 4: Simplify right side
    136,652.90x = 26,935,127,005.34
  5. Step 5: Solve for x
    x = 26,935,127,005.34/136,652.90
  6. Step 6: Final answer
    x = 197,106.15

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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.