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Finding the Fourth Proportional to 361,983.08, 542,268.30 and 236,945

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Solution

The fourth proportional to 361,983.08, 542,268.30 and 236,945 is: 354,955.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,983.08 : 542,268.30 = 236,945 : x
  2. Step 2: Convert to fraction form
    361,983.08/542,268.30 = 236,945/x
  3. Step 3: Cross multiply
    361,983.08x = 542,268.30 × 236,945
  4. Step 4: Simplify right side
    361,983.08x = 128,487,762,343.50
  5. Step 5: Solve for x
    x = 128,487,762,343.50/361,983.08
  6. Step 6: Final answer
    x = 354,955.16

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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.