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Finding the Fourth Proportional to 236,611.31, 326,524.34 and 151,728.71

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Solution

The fourth proportional to 236,611.31, 326,524.34 and 151,728.71 is: 209,386.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,611.31 : 326,524.34 = 151,728.71 : x
  2. Step 2: Convert to fraction form
    236,611.31/326,524.34 = 151,728.71/x
  3. Step 3: Cross multiply
    236,611.31x = 326,524.34 × 151,728.71
  4. Step 4: Simplify right side
    236,611.31x = 49,543,115,638.50
  5. Step 5: Solve for x
    x = 49,543,115,638.50/236,611.31
  6. Step 6: Final answer
    x = 209,386.09

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1.5x scale

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.