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Finding the Fourth Proportional to 169,887.40, 234,698.82 and 111,881.98

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Solution

The fourth proportional to 169,887.40, 234,698.82 and 111,881.98 is: 154,564.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,887.40 : 234,698.82 = 111,881.98 : x
  2. Step 2: Convert to fraction form
    169,887.40/234,698.82 = 111,881.98/x
  3. Step 3: Cross multiply
    169,887.40x = 234,698.82 × 111,881.98
  4. Step 4: Simplify right side
    169,887.40x = 26,258,568,685.26
  5. Step 5: Solve for x
    x = 26,258,568,685.26/169,887.40
  6. Step 6: Final answer
    x = 154,564.55

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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.