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Finding the Fourth Proportional to 121,664.52, 167,804.52 and 104,697.36

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Solution

The fourth proportional to 121,664.52, 167,804.52 and 104,697.36 is: 144,402.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,664.52 : 167,804.52 = 104,697.36 : x
  2. Step 2: Convert to fraction form
    121,664.52/167,804.52 = 104,697.36/x
  3. Step 3: Cross multiply
    121,664.52x = 167,804.52 × 104,697.36
  4. Step 4: Simplify right side
    121,664.52x = 17,568,690,240.07
  5. Step 5: Solve for x
    x = 17,568,690,240.07/121,664.52
  6. Step 6: Final answer
    x = 144,402.74

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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.