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Finding the Fourth Proportional to 342,326.93, 513,364.64 and 117,623.61

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Solution

The fourth proportional to 342,326.93, 513,364.64 and 117,623.61 is: 176,392.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,326.93 : 513,364.64 = 117,623.61 : x
  2. Step 2: Convert to fraction form
    342,326.93/513,364.64 = 117,623.61/x
  3. Step 3: Cross multiply
    342,326.93x = 513,364.64 × 117,623.61
  4. Step 4: Simplify right side
    342,326.93x = 60,383,801,615.03
  5. Step 5: Solve for x
    x = 60,383,801,615.03/342,326.93
  6. Step 6: Final answer
    x = 176,392.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.