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Finding the Fourth Proportional to 107,365.58, 160,837.71 and 87,396.56

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Solution

The fourth proportional to 107,365.58, 160,837.71 and 87,396.56 is: 130,923.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,365.58 : 160,837.71 = 87,396.56 : x
  2. Step 2: Convert to fraction form
    107,365.58/160,837.71 = 87,396.56/x
  3. Step 3: Cross multiply
    107,365.58x = 160,837.71 × 87,396.56
  4. Step 4: Simplify right side
    107,365.58x = 14,056,662,974.37
  5. Step 5: Solve for x
    x = 14,056,662,974.37/107,365.58
  6. Step 6: Final answer
    x = 130,923.36

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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.