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Finding the Fourth Proportional to 57,392.64, 86,114.91 and 29,298.20

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Solution

The fourth proportional to 57,392.64, 86,114.91 and 29,298.20 is: 43,960.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,392.64 : 86,114.91 = 29,298.20 : x
  2. Step 2: Convert to fraction form
    57,392.64/86,114.91 = 29,298.20/x
  3. Step 3: Cross multiply
    57,392.64x = 86,114.91 × 29,298.20
  4. Step 4: Simplify right side
    57,392.64x = 2,523,011,425.59
  5. Step 5: Solve for x
    x = 2,523,011,425.59/57,392.64
  6. Step 6: Final answer
    x = 43,960.54

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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.