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Finding the Fourth Proportional to 137,150.30, 205,725.45 and 113,822.30

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Solution

The fourth proportional to 137,150.30, 205,725.45 and 113,822.30 is: 170,733.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,150.30 : 205,725.45 = 113,822.30 : x
  2. Step 2: Convert to fraction form
    137,150.30/205,725.45 = 113,822.30/x
  3. Step 3: Cross multiply
    137,150.30x = 205,725.45 × 113,822.30
  4. Step 4: Simplify right side
    137,150.30x = 23,416,143,887.54
  5. Step 5: Solve for x
    x = 23,416,143,887.54/137,150.30
  6. Step 6: Final answer
    x = 170,733.45

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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.