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Finding the Fourth Proportional to 91,305.44, 136,948.44 and 43,262.45

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Solution

The fourth proportional to 91,305.44, 136,948.44 and 43,262.45 is: 64,889.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,305.44 : 136,948.44 = 43,262.45 : x
  2. Step 2: Convert to fraction form
    91,305.44/136,948.44 = 43,262.45/x
  3. Step 3: Cross multiply
    91,305.44x = 136,948.44 × 43,262.45
  4. Step 4: Simplify right side
    91,305.44x = 5,924,725,380.45
  5. Step 5: Solve for x
    x = 5,924,725,380.45/91,305.44
  6. Step 6: Final answer
    x = 64,889.07

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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.