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Finding the Fourth Proportional to 193,671.77, 290,524.39 and 53,430.39

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Solution

The fourth proportional to 193,671.77, 290,524.39 and 53,430.39 is: 80,150.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,671.77 : 290,524.39 = 53,430.39 : x
  2. Step 2: Convert to fraction form
    193,671.77/290,524.39 = 53,430.39/x
  3. Step 3: Cross multiply
    193,671.77x = 290,524.39 × 53,430.39
  4. Step 4: Simplify right side
    193,671.77x = 15,522,832,418.10
  5. Step 5: Solve for x
    x = 15,522,832,418.10/193,671.77
  6. Step 6: Final answer
    x = 80,150.21

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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.