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Finding the Fourth Proportional to 215,873.15, 323,881.43 and 95,913.41

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Solution

The fourth proportional to 215,873.15, 323,881.43 and 95,913.41 is: 143,901.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,873.15 : 323,881.43 = 95,913.41 : x
  2. Step 2: Convert to fraction form
    215,873.15/323,881.43 = 95,913.41/x
  3. Step 3: Cross multiply
    215,873.15x = 323,881.43 × 95,913.41
  4. Step 4: Simplify right side
    215,873.15x = 31,064,570,288.00
  5. Step 5: Solve for x
    x = 31,064,570,288.00/215,873.15
  6. Step 6: Final answer
    x = 143,901.97

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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.