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Finding the Fourth Proportional to 342,208.04, 472,262.55 and 191,305.04

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Solution

The fourth proportional to 342,208.04, 472,262.55 and 191,305.04 is: 264,009.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,208.04 : 472,262.55 = 191,305.04 : x
  2. Step 2: Convert to fraction form
    342,208.04/472,262.55 = 191,305.04/x
  3. Step 3: Cross multiply
    342,208.04x = 472,262.55 × 191,305.04
  4. Step 4: Simplify right side
    342,208.04x = 90,346,206,018.25
  5. Step 5: Solve for x
    x = 90,346,206,018.25/342,208.04
  6. Step 6: Final answer
    x = 264,009.59

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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.