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Finding the Fourth Proportional to 251,103.34, 376,334.71 and 117,689.66

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Solution

The fourth proportional to 251,103.34, 376,334.71 and 117,689.66 is: 176,384.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,103.34 : 376,334.71 = 117,689.66 : x
  2. Step 2: Convert to fraction form
    251,103.34/376,334.71 = 117,689.66/x
  3. Step 3: Cross multiply
    251,103.34x = 376,334.71 × 117,689.66
  4. Step 4: Simplify right side
    251,103.34x = 44,290,703,301.46
  5. Step 5: Solve for x
    x = 44,290,703,301.46/251,103.34
  6. Step 6: Final answer
    x = 176,384.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.