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Finding the Fourth Proportional to 57,392.70, 85,846.05 and 51,512.10

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Solution

The fourth proportional to 57,392.70, 85,846.05 and 51,512.10 is: 77,050.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,392.70 : 85,846.05 = 51,512.10 : x
  2. Step 2: Convert to fraction form
    57,392.70/85,846.05 = 51,512.10/x
  3. Step 3: Cross multiply
    57,392.70x = 85,846.05 × 51,512.10
  4. Step 4: Simplify right side
    57,392.70x = 4,422,110,312.21
  5. Step 5: Solve for x
    x = 4,422,110,312.21/57,392.70
  6. Step 6: Final answer
    x = 77,050.05

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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.