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Finding the Fourth Proportional to 147,163.31, 203,030.87 and 92,700.86

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Solution

The fourth proportional to 147,163.31, 203,030.87 and 92,700.86 is: 127,892.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,163.31 : 203,030.87 = 92,700.86 : x
  2. Step 2: Convert to fraction form
    147,163.31/203,030.87 = 92,700.86/x
  3. Step 3: Cross multiply
    147,163.31x = 203,030.87 × 92,700.86
  4. Step 4: Simplify right side
    147,163.31x = 18,821,134,907.25
  5. Step 5: Solve for x
    x = 18,821,134,907.25/147,163.31
  6. Step 6: Final answer
    x = 127,892.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.