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Finding the Fourth Proportional to 351,847.44, 527,771.52 and 85,607.94

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Solution

The fourth proportional to 351,847.44, 527,771.52 and 85,607.94 is: 128,412.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,847.44 : 527,771.52 = 85,607.94 : x
  2. Step 2: Convert to fraction form
    351,847.44/527,771.52 = 85,607.94/x
  3. Step 3: Cross multiply
    351,847.44x = 527,771.52 × 85,607.94
  4. Step 4: Simplify right side
    351,847.44x = 45,181,432,617.87
  5. Step 5: Solve for x
    x = 45,181,432,617.87/351,847.44
  6. Step 6: Final answer
    x = 128,412.00

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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.