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Finding the Fourth Proportional to 374,136.30, 561,204.45 and 137,648.70

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Solution

The fourth proportional to 374,136.30, 561,204.45 and 137,648.70 is: 206,473.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,136.30 : 561,204.45 = 137,648.70 : x
  2. Step 2: Convert to fraction form
    374,136.30/561,204.45 = 137,648.70/x
  3. Step 3: Cross multiply
    374,136.30x = 561,204.45 × 137,648.70
  4. Step 4: Simplify right side
    374,136.30x = 77,249,062,976.72
  5. Step 5: Solve for x
    x = 77,249,062,976.72/374,136.30
  6. Step 6: Final answer
    x = 206,473.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.