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Finding the Fourth Proportional to 251,362.80, 346,886.52 and 136,647.96

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Solution

The fourth proportional to 251,362.80, 346,886.52 and 136,647.96 is: 188,577.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,362.80 : 346,886.52 = 136,647.96 : x
  2. Step 2: Convert to fraction form
    251,362.80/346,886.52 = 136,647.96/x
  3. Step 3: Cross multiply
    251,362.80x = 346,886.52 × 136,647.96
  4. Step 4: Simplify right side
    251,362.80x = 47,401,335,309.50
  5. Step 5: Solve for x
    x = 47,401,335,309.50/251,362.80
  6. Step 6: Final answer
    x = 188,577.37

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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.