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Finding the Fourth Proportional to 374,414.50, 561,621.75 and 125,096.50

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Solution

The fourth proportional to 374,414.50, 561,621.75 and 125,096.50 is: 187,644.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,414.50 : 561,621.75 = 125,096.50 : x
  2. Step 2: Convert to fraction form
    374,414.50/561,621.75 = 125,096.50/x
  3. Step 3: Cross multiply
    374,414.50x = 561,621.75 × 125,096.50
  4. Step 4: Simplify right side
    374,414.50x = 70,256,915,248.88
  5. Step 5: Solve for x
    x = 70,256,915,248.88/374,414.50
  6. Step 6: Final answer
    x = 187,644.75

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1.5x scale

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.