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Finding the Fourth Proportional to 265,840.94, 398,416.96 and 107,983.28

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Solution

The fourth proportional to 265,840.94, 398,416.96 and 107,983.28 is: 161,835.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,840.94 : 398,416.96 = 107,983.28 : x
  2. Step 2: Convert to fraction form
    265,840.94/398,416.96 = 107,983.28/x
  3. Step 3: Cross multiply
    265,840.94x = 398,416.96 × 107,983.28
  4. Step 4: Simplify right side
    265,840.94x = 43,022,370,148.43
  5. Step 5: Solve for x
    x = 43,022,370,148.43/265,840.94
  6. Step 6: Final answer
    x = 161,835.01

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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.