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Finding the Fourth Proportional to 342,378.91, 472,482.53 and 191,475.91

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Solution

The fourth proportional to 342,378.91, 472,482.53 and 191,475.91 is: 264,236.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,378.91 : 472,482.53 = 191,475.91 : x
  2. Step 2: Convert to fraction form
    342,378.91/472,482.53 = 191,475.91/x
  3. Step 3: Cross multiply
    342,378.91x = 472,482.53 × 191,475.91
  4. Step 4: Simplify right side
    342,378.91x = 90,469,020,028.44
  5. Step 5: Solve for x
    x = 90,469,020,028.44/342,378.91
  6. Step 6: Final answer
    x = 264,236.55

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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.