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Finding the Fourth Proportional to 242,992.31, 335,328.46 and 135,562.41

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Solution

The fourth proportional to 242,992.31, 335,328.46 and 135,562.41 is: 187,075.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,992.31 : 335,328.46 = 135,562.41 : x
  2. Step 2: Convert to fraction form
    242,992.31/335,328.46 = 135,562.41/x
  3. Step 3: Cross multiply
    242,992.31x = 335,328.46 × 135,562.41
  4. Step 4: Simplify right side
    242,992.31x = 45,457,933,840.28
  5. Step 5: Solve for x
    x = 45,457,933,840.28/242,992.31
  6. Step 6: Final answer
    x = 187,075.61

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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.