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Finding the Fourth Proportional to 79,258.48, 118,903.26 and 29,338.96

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Solution

The fourth proportional to 79,258.48, 118,903.26 and 29,338.96 is: 44,014.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,258.48 : 118,903.26 = 29,338.96 : x
  2. Step 2: Convert to fraction form
    79,258.48/118,903.26 = 29,338.96/x
  3. Step 3: Cross multiply
    79,258.48x = 118,903.26 × 29,338.96
  4. Step 4: Simplify right side
    79,258.48x = 3,488,497,989.01
  5. Step 5: Solve for x
    x = 3,488,497,989.01/79,258.48
  6. Step 6: Final answer
    x = 44,014.19

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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.