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Finding the Fourth Proportional to 351,573.64, 527,360.73 and 85,334.41

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Solution

The fourth proportional to 351,573.64, 527,360.73 and 85,334.41 is: 128,001.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,573.64 : 527,360.73 = 85,334.41 : x
  2. Step 2: Convert to fraction form
    351,573.64/527,360.73 = 85,334.41/x
  3. Step 3: Cross multiply
    351,573.64x = 527,360.73 × 85,334.41
  4. Step 4: Simplify right side
    351,573.64x = 45,002,017,090.92
  5. Step 5: Solve for x
    x = 45,002,017,090.92/351,573.64
  6. Step 6: Final answer
    x = 128,001.68

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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.