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Finding the Fourth Proportional to 136,709.57, 205,070.50 and 41,932.86

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Solution

The fourth proportional to 136,709.57, 205,070.50 and 41,932.86 is: 62,901.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,709.57 : 205,070.50 = 41,932.86 : x
  2. Step 2: Convert to fraction form
    136,709.57/205,070.50 = 41,932.86/x
  3. Step 3: Cross multiply
    136,709.57x = 205,070.50 × 41,932.86
  4. Step 4: Simplify right side
    136,709.57x = 8,599,191,850.03
  5. Step 5: Solve for x
    x = 8,599,191,850.03/136,709.57
  6. Step 6: Final answer
    x = 62,901.17

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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.