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Finding the Fourth Proportional to 342,715.32, 472,953.42 and 191,811.96

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Solution

The fourth proportional to 342,715.32, 472,953.42 and 191,811.96 is: 264,704.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,715.32 : 472,953.42 = 191,811.96 : x
  2. Step 2: Convert to fraction form
    342,715.32/472,953.42 = 191,811.96/x
  3. Step 3: Cross multiply
    342,715.32x = 472,953.42 × 191,811.96
  4. Step 4: Simplify right side
    342,715.32x = 90,718,122,478.90
  5. Step 5: Solve for x
    x = 90,718,122,478.90/342,715.32
  6. Step 6: Final answer
    x = 264,704.02

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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.