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Finding the Fourth Proportional to 93,759.77, 140,654.27 and 31,415.69

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Solution

The fourth proportional to 93,759.77, 140,654.27 and 31,415.69 is: 47,128.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,759.77 : 140,654.27 = 31,415.69 : x
  2. Step 2: Convert to fraction form
    93,759.77/140,654.27 = 31,415.69/x
  3. Step 3: Cross multiply
    93,759.77x = 140,654.27 × 31,415.69
  4. Step 4: Simplify right side
    93,759.77x = 4,418,750,434.78
  5. Step 5: Solve for x
    x = 4,418,750,434.78/93,759.77
  6. Step 6: Final answer
    x = 47,128.43

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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.