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Finding the Fourth Proportional to 342,207.54, 472,261.86 and 191,304.54

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Solution

The fourth proportional to 342,207.54, 472,261.86 and 191,304.54 is: 264,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,207.54 : 472,261.86 = 191,304.54 : x
  2. Step 2: Convert to fraction form
    342,207.54/472,261.86 = 191,304.54/x
  3. Step 3: Cross multiply
    342,207.54x = 472,261.86 × 191,304.54
  4. Step 4: Simplify right side
    342,207.54x = 90,345,837,886.84
  5. Step 5: Solve for x
    x = 90,345,837,886.84/342,207.54
  6. Step 6: Final answer
    x = 264,008.90

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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.