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Finding the Fourth Proportional to 136,943.80, 205,026.90 and 136,943.80

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Solution

The fourth proportional to 136,943.80, 205,026.90 and 136,943.80 is: 205,026.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,943.80 : 205,026.90 = 136,943.80 : x
  2. Step 2: Convert to fraction form
    136,943.80/205,026.90 = 136,943.80/x
  3. Step 3: Cross multiply
    136,943.80x = 205,026.90 × 136,943.80
  4. Step 4: Simplify right side
    136,943.80x = 28,077,162,788.22
  5. Step 5: Solve for x
    x = 28,077,162,788.22/136,943.80
  6. Step 6: Final answer
    x = 205,026.90

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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.