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Finding the Fourth Proportional to 342,048.28, 472,027.26 and 191,145.28

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Solution

The fourth proportional to 342,048.28, 472,027.26 and 191,145.28 is: 263,780.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,048.28 : 472,027.26 = 191,145.28 : x
  2. Step 2: Convert to fraction form
    342,048.28/472,027.26 = 191,145.28/x
  3. Step 3: Cross multiply
    342,048.28x = 472,027.26 × 191,145.28
  4. Step 4: Simplify right side
    342,048.28x = 90,225,782,780.33
  5. Step 5: Solve for x
    x = 90,225,782,780.33/342,048.28
  6. Step 6: Final answer
    x = 263,780.84

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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.