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Finding the Fourth Proportional to 251,300.76, 346,797.72 and 136,579.40

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Solution

The fourth proportional to 251,300.76, 346,797.72 and 136,579.40 is: 188,481.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,300.76 : 346,797.72 = 136,579.40 : x
  2. Step 2: Convert to fraction form
    251,300.76/346,797.72 = 136,579.40/x
  3. Step 3: Cross multiply
    251,300.76x = 346,797.72 × 136,579.40
  4. Step 4: Simplify right side
    251,300.76x = 47,365,424,518.97
  5. Step 5: Solve for x
    x = 47,365,424,518.97/251,300.76
  6. Step 6: Final answer
    x = 188,481.02

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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.