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Finding the Fourth Proportional to 118,883.19, 164,111.56 and 75,918.97

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Solution

The fourth proportional to 118,883.19, 164,111.56 and 75,918.97 is: 104,801.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,883.19 : 164,111.56 = 75,918.97 : x
  2. Step 2: Convert to fraction form
    118,883.19/164,111.56 = 75,918.97/x
  3. Step 3: Cross multiply
    118,883.19x = 164,111.56 × 75,918.97
  4. Step 4: Simplify right side
    118,883.19x = 12,459,180,600.29
  5. Step 5: Solve for x
    x = 12,459,180,600.29/118,883.19
  6. Step 6: Final answer
    x = 104,801.87

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1.5x scale

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.