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Finding the Fourth Proportional to 151,873.65, 207,764.21 and 151,233.95

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Solution

The fourth proportional to 151,873.65, 207,764.21 and 151,233.95 is: 206,889.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,873.65 : 207,764.21 = 151,233.95 : x
  2. Step 2: Convert to fraction form
    151,873.65/207,764.21 = 151,233.95/x
  3. Step 3: Cross multiply
    151,873.65x = 207,764.21 × 151,233.95
  4. Step 4: Simplify right side
    151,873.65x = 31,421,003,044.42
  5. Step 5: Solve for x
    x = 31,421,003,044.42/151,873.65
  6. Step 6: Final answer
    x = 206,889.10

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.