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Finding the Fourth Proportional to 118,883.26, 164,111.65 and 75,919.03

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Solution

The fourth proportional to 118,883.26, 164,111.65 and 75,919.03 is: 104,801.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,883.26 : 164,111.65 = 75,919.03 : x
  2. Step 2: Convert to fraction form
    118,883.26/164,111.65 = 75,919.03/x
  3. Step 3: Cross multiply
    118,883.26x = 164,111.65 × 75,919.03
  4. Step 4: Simplify right side
    118,883.26x = 12,459,196,900.10
  5. Step 5: Solve for x
    x = 12,459,196,900.10/118,883.26
  6. Step 6: Final answer
    x = 104,801.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.