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Finding the Fourth Proportional to 99,512.84, 148,918.68 and 62,090.54

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Solution

The fourth proportional to 99,512.84, 148,918.68 and 62,090.54 is: 92,917.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,512.84 : 148,918.68 = 62,090.54 : x
  2. Step 2: Convert to fraction form
    99,512.84/148,918.68 = 62,090.54/x
  3. Step 3: Cross multiply
    99,512.84x = 148,918.68 × 62,090.54
  4. Step 4: Simplify right side
    99,512.84x = 9,246,441,257.29
  5. Step 5: Solve for x
    x = 9,246,441,257.29/99,512.84
  6. Step 6: Final answer
    x = 92,917.07

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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.