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Finding the Fourth Proportional to 342,502.45, 472,652.72 and 191,599.45

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Solution

The fourth proportional to 342,502.45, 472,652.72 and 191,599.45 is: 264,406.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,502.45 : 472,652.72 = 191,599.45 : x
  2. Step 2: Convert to fraction form
    342,502.45/472,652.72 = 191,599.45/x
  3. Step 3: Cross multiply
    342,502.45x = 472,652.72 × 191,599.45
  4. Step 4: Simplify right side
    342,502.45x = 90,560,000,235.01
  5. Step 5: Solve for x
    x = 90,560,000,235.01/342,502.45
  6. Step 6: Final answer
    x = 264,406.87

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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.