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Finding the Fourth Proportional to 326,531.25, 489,796.88 and 116,169.80

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Solution

The fourth proportional to 326,531.25, 489,796.88 and 116,169.80 is: 174,254.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,531.25 : 489,796.88 = 116,169.80 : x
  2. Step 2: Convert to fraction form
    326,531.25/489,796.88 = 116,169.80/x
  3. Step 3: Cross multiply
    326,531.25x = 489,796.88 × 116,169.80
  4. Step 4: Simplify right side
    326,531.25x = 56,899,602,560.39
  5. Step 5: Solve for x
    x = 56,899,602,560.39/326,531.25
  6. Step 6: Final answer
    x = 174,254.69

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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.