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Finding the Fourth Proportional to 251,299.30, 346,795.71 and 136,577.95

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Solution

The fourth proportional to 251,299.30, 346,795.71 and 136,577.95 is: 188,479.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,299.30 : 346,795.71 = 136,577.95 : x
  2. Step 2: Convert to fraction form
    251,299.30/346,795.71 = 136,577.95/x
  3. Step 3: Cross multiply
    251,299.30x = 346,795.71 × 136,577.95
  4. Step 4: Simplify right side
    251,299.30x = 47,364,647,140.59
  5. Step 5: Solve for x
    x = 47,364,647,140.59/251,299.30
  6. Step 6: Final answer
    x = 188,479.03

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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.