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Finding the Fourth Proportional to 342,462.16, 472,572.12 and 191,530

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Solution

The fourth proportional to 342,462.16, 472,572.12 and 191,530 is: 264,297.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,462.16 : 472,572.12 = 191,530 : x
  2. Step 2: Convert to fraction form
    342,462.16/472,572.12 = 191,530/x
  3. Step 3: Cross multiply
    342,462.16x = 472,572.12 × 191,530
  4. Step 4: Simplify right side
    342,462.16x = 90,511,738,143.60
  5. Step 5: Solve for x
    x = 90,511,738,143.60/342,462.16
  6. Step 6: Final answer
    x = 264,297.05

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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.