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Finding the Fourth Proportional to 374,448.60, 561,672.90 and 149,916.60

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Solution

The fourth proportional to 374,448.60, 561,672.90 and 149,916.60 is: 224,874.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,448.60 : 561,672.90 = 149,916.60 : x
  2. Step 2: Convert to fraction form
    374,448.60/561,672.90 = 149,916.60/x
  3. Step 3: Cross multiply
    374,448.60x = 561,672.90 × 149,916.60
  4. Step 4: Simplify right side
    374,448.60x = 84,204,091,480.14
  5. Step 5: Solve for x
    x = 84,204,091,480.14/374,448.60
  6. Step 6: Final answer
    x = 224,874.90

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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.