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Finding the Fourth Proportional to 251,282.64, 346,654.44 and 154,398.54

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Solution

The fourth proportional to 251,282.64, 346,654.44 and 154,398.54 is: 212,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,282.64 : 346,654.44 = 154,398.54 : x
  2. Step 2: Convert to fraction form
    251,282.64/346,654.44 = 154,398.54/x
  3. Step 3: Cross multiply
    251,282.64x = 346,654.44 × 154,398.54
  4. Step 4: Simplify right side
    251,282.64x = 53,522,939,420.52
  5. Step 5: Solve for x
    x = 53,522,939,420.52/251,282.64
  6. Step 6: Final answer
    x = 212,998.95

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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.