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Finding the Fourth Proportional to 353,078.95, 487,245.49 and 191,924.41

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Solution

The fourth proportional to 353,078.95, 487,245.49 and 191,924.41 is: 264,853.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,078.95 : 487,245.49 = 191,924.41 : x
  2. Step 2: Convert to fraction form
    353,078.95/487,245.49 = 191,924.41/x
  3. Step 3: Cross multiply
    353,078.95x = 487,245.49 × 191,924.41
  4. Step 4: Simplify right side
    353,078.95x = 93,514,304,411.52
  5. Step 5: Solve for x
    x = 93,514,304,411.52/353,078.95
  6. Step 6: Final answer
    x = 264,853.81

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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.