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Finding the Fourth Proportional to 136,373.67, 204,645.69 and 52,140.96

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Solution

The fourth proportional to 136,373.67, 204,645.69 and 52,140.96 is: 78,244.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,373.67 : 204,645.69 = 52,140.96 : x
  2. Step 2: Convert to fraction form
    136,373.67/204,645.69 = 52,140.96/x
  3. Step 3: Cross multiply
    136,373.67x = 204,645.69 × 52,140.96
  4. Step 4: Simplify right side
    136,373.67x = 10,670,422,736.46
  5. Step 5: Solve for x
    x = 10,670,422,736.46/136,373.67
  6. Step 6: Final answer
    x = 78,244.01

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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.