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Finding the Fourth Proportional to 326,573.39, 489,878.31 and 101,964.84

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Solution

The fourth proportional to 326,573.39, 489,878.31 and 101,964.84 is: 152,952.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,573.39 : 489,878.31 = 101,964.84 : x
  2. Step 2: Convert to fraction form
    326,573.39/489,878.31 = 101,964.84/x
  3. Step 3: Cross multiply
    326,573.39x = 489,878.31 × 101,964.84
  4. Step 4: Simplify right side
    326,573.39x = 49,950,363,498.62
  5. Step 5: Solve for x
    x = 49,950,363,498.62/326,573.39
  6. Step 6: Final answer
    x = 152,952.95

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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.