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Finding the Fourth Proportional to 342,698.38, 472,923.70 and 191,795.38

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Solution

The fourth proportional to 342,698.38, 472,923.70 and 191,795.38 is: 264,677.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,698.38 : 472,923.70 = 191,795.38 : x
  2. Step 2: Convert to fraction form
    342,698.38/472,923.70 = 191,795.38/x
  3. Step 3: Cross multiply
    342,698.38x = 472,923.70 × 191,795.38
  4. Step 4: Simplify right side
    342,698.38x = 90,704,580,752.51
  5. Step 5: Solve for x
    x = 90,704,580,752.51/342,698.38
  6. Step 6: Final answer
    x = 264,677.59

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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.