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Finding the Fourth Proportional to 115,208.58, 158,991.21 and 67,457.46

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Solution

The fourth proportional to 115,208.58, 158,991.21 and 67,457.46 is: 93,093.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,208.58 : 158,991.21 = 67,457.46 : x
  2. Step 2: Convert to fraction form
    115,208.58/158,991.21 = 67,457.46/x
  3. Step 3: Cross multiply
    115,208.58x = 158,991.21 × 67,457.46
  4. Step 4: Simplify right side
    115,208.58x = 10,725,143,188.93
  5. Step 5: Solve for x
    x = 10,725,143,188.93/115,208.58
  6. Step 6: Final answer
    x = 93,093.27

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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.