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Finding the Fourth Proportional to 201,291.80, 302,520.90 and 197,792.60

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Solution

The fourth proportional to 201,291.80, 302,520.90 and 197,792.60 is: 297,261.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,291.80 : 302,520.90 = 197,792.60 : x
  2. Step 2: Convert to fraction form
    201,291.80/302,520.90 = 197,792.60/x
  3. Step 3: Cross multiply
    201,291.80x = 302,520.90 × 197,792.60
  4. Step 4: Simplify right side
    201,291.80x = 59,836,395,365.34
  5. Step 5: Solve for x
    x = 59,836,395,365.34/201,291.80
  6. Step 6: Final answer
    x = 297,261.96

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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.