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Finding the Fourth Proportional to 93,620.97, 140,402.28 and 31,276.89

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Solution

The fourth proportional to 93,620.97, 140,402.28 and 31,276.89 is: 46,905.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,620.97 : 140,402.28 = 31,276.89 : x
  2. Step 2: Convert to fraction form
    93,620.97/140,402.28 = 31,276.89/x
  3. Step 3: Cross multiply
    93,620.97x = 140,402.28 × 31,276.89
  4. Step 4: Simplify right side
    93,620.97x = 4,391,346,667.31
  5. Step 5: Solve for x
    x = 4,391,346,667.31/93,620.97
  6. Step 6: Final answer
    x = 46,905.59

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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.