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Finding the Fourth Proportional to 251,233.92, 346,688.64 and 154,474.56

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Solution

The fourth proportional to 251,233.92, 346,688.64 and 154,474.56 is: 213,166.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,233.92 : 346,688.64 = 154,474.56 : x
  2. Step 2: Convert to fraction form
    251,233.92/346,688.64 = 154,474.56/x
  3. Step 3: Cross multiply
    251,233.92x = 346,688.64 × 154,474.56
  4. Step 4: Simplify right side
    251,233.92x = 53,554,575,121.00
  5. Step 5: Solve for x
    x = 53,554,575,121.00/251,233.92
  6. Step 6: Final answer
    x = 213,166.18

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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.