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Finding the Fourth Proportional to 107,902.58, 161,900.51 and 57,924.31

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Solution

The fourth proportional to 107,902.58, 161,900.51 and 57,924.31 is: 86,911.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,902.58 : 161,900.51 = 57,924.31 : x
  2. Step 2: Convert to fraction form
    107,902.58/161,900.51 = 57,924.31/x
  3. Step 3: Cross multiply
    107,902.58x = 161,900.51 × 57,924.31
  4. Step 4: Simplify right side
    107,902.58x = 9,377,974,636.03
  5. Step 5: Solve for x
    x = 9,377,974,636.03/107,902.58
  6. Step 6: Final answer
    x = 86,911.50

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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.