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Finding the Fourth Proportional to 251,398.02, 346,936.11 and 136,684.38

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Solution

The fourth proportional to 251,398.02, 346,936.11 and 136,684.38 is: 188,628.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,398.02 : 346,936.11 = 136,684.38 : x
  2. Step 2: Convert to fraction form
    251,398.02/346,936.11 = 136,684.38/x
  3. Step 3: Cross multiply
    251,398.02x = 346,936.11 × 136,684.38
  4. Step 4: Simplify right side
    251,398.02x = 47,420,747,094.96
  5. Step 5: Solve for x
    x = 47,420,747,094.96/251,398.02
  6. Step 6: Final answer
    x = 188,628.16

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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.