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Finding the Fourth Proportional to 251,446.66, 346,996.81 and 136,725.20

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Solution

The fourth proportional to 251,446.66, 346,996.81 and 136,725.20 is: 188,681.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,446.66 : 346,996.81 = 136,725.20 : x
  2. Step 2: Convert to fraction form
    251,446.66/346,996.81 = 136,725.20/x
  3. Step 3: Cross multiply
    251,446.66x = 346,996.81 × 136,725.20
  4. Step 4: Simplify right side
    251,446.66x = 47,443,207,983.77
  5. Step 5: Solve for x
    x = 47,443,207,983.77/251,446.66
  6. Step 6: Final answer
    x = 188,681.00

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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.