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Finding the Fourth Proportional to 251,851.84, 375,935.17 and 221,959.24

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Solution

The fourth proportional to 251,851.84, 375,935.17 and 221,959.24 is: 331,314.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,851.84 : 375,935.17 = 221,959.24 : x
  2. Step 2: Convert to fraction form
    251,851.84/375,935.17 = 221,959.24/x
  3. Step 3: Cross multiply
    251,851.84x = 375,935.17 × 221,959.24
  4. Step 4: Simplify right side
    251,851.84x = 83,442,283,512.67
  5. Step 5: Solve for x
    x = 83,442,283,512.67/251,851.84
  6. Step 6: Final answer
    x = 331,314.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.