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Finding the Fourth Proportional to 201,728.80, 302,594.70 and 75,397.60

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Solution

The fourth proportional to 201,728.80, 302,594.70 and 75,397.60 is: 113,096.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,728.80 : 302,594.70 = 75,397.60 : x
  2. Step 2: Convert to fraction form
    201,728.80/302,594.70 = 75,397.60/x
  3. Step 3: Cross multiply
    201,728.80x = 302,594.70 × 75,397.60
  4. Step 4: Simplify right side
    201,728.80x = 22,814,914,152.72
  5. Step 5: Solve for x
    x = 22,814,914,152.72/201,728.80
  6. Step 6: Final answer
    x = 113,096.96

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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.