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Finding the Fourth Proportional to 342,951.98, 473,268.62 and 189,989.85

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Solution

The fourth proportional to 342,951.98, 473,268.62 and 189,989.85 is: 262,183.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,951.98 : 473,268.62 = 189,989.85 : x
  2. Step 2: Convert to fraction form
    342,951.98/473,268.62 = 189,989.85/x
  3. Step 3: Cross multiply
    342,951.98x = 473,268.62 × 189,989.85
  4. Step 4: Simplify right side
    342,951.98x = 89,916,236,373.24
  5. Step 5: Solve for x
    x = 89,916,236,373.24/342,951.98
  6. Step 6: Final answer
    x = 262,183.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.