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Finding the Fourth Proportional to 207,061.96, 285,763.74 and 122,162.44

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Solution

The fourth proportional to 207,061.96, 285,763.74 and 122,162.44 is: 168,594.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,061.96 : 285,763.74 = 122,162.44 : x
  2. Step 2: Convert to fraction form
    207,061.96/285,763.74 = 122,162.44/x
  3. Step 3: Cross multiply
    207,061.96x = 285,763.74 × 122,162.44
  4. Step 4: Simplify right side
    207,061.96x = 34,909,595,741.93
  5. Step 5: Solve for x
    x = 34,909,595,741.93/207,061.96
  6. Step 6: Final answer
    x = 168,594.93

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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.