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Finding the Fourth Proportional to 260,685.21, 359,784.06 and 165,200.61

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Solution

The fourth proportional to 260,685.21, 359,784.06 and 165,200.61 is: 228,001.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,685.21 : 359,784.06 = 165,200.61 : x
  2. Step 2: Convert to fraction form
    260,685.21/359,784.06 = 165,200.61/x
  3. Step 3: Cross multiply
    260,685.21x = 359,784.06 × 165,200.61
  4. Step 4: Simplify right side
    260,685.21x = 59,436,546,180.28
  5. Step 5: Solve for x
    x = 59,436,546,180.28/260,685.21
  6. Step 6: Final answer
    x = 228,001.22

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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.