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Finding the Fourth Proportional to 326,617.21, 489,925.63 and 101,996.89

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Solution

The fourth proportional to 326,617.21, 489,925.63 and 101,996.89 is: 152,995.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,617.21 : 489,925.63 = 101,996.89 : x
  2. Step 2: Convert to fraction form
    326,617.21/489,925.63 = 101,996.89/x
  3. Step 3: Cross multiply
    326,617.21x = 489,925.63 × 101,996.89
  4. Step 4: Simplify right side
    326,617.21x = 49,970,889,493.97
  5. Step 5: Solve for x
    x = 49,970,889,493.97/326,617.21
  6. Step 6: Final answer
    x = 152,995.27

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Similar ratio
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1.5x scale

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.