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Finding the Fourth Proportional to 121,596.48, 167,819.04 and 71,300.16

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Solution

The fourth proportional to 121,596.48, 167,819.04 and 71,300.16 is: 98,403.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,596.48 : 167,819.04 = 71,300.16 : x
  2. Step 2: Convert to fraction form
    121,596.48/167,819.04 = 71,300.16/x
  3. Step 3: Cross multiply
    121,596.48x = 167,819.04 × 71,300.16
  4. Step 4: Simplify right side
    121,596.48x = 11,965,524,403.05
  5. Step 5: Solve for x
    x = 11,965,524,403.05/121,596.48
  6. Step 6: Final answer
    x = 98,403.54

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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.