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Finding the Fourth Proportional to 251,249.92, 346,779.58 and 154,536.90

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Solution

The fourth proportional to 251,249.92, 346,779.58 and 154,536.90 is: 213,294.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,249.92 : 346,779.58 = 154,536.90 : x
  2. Step 2: Convert to fraction form
    251,249.92/346,779.58 = 154,536.90/x
  3. Step 3: Cross multiply
    251,249.92x = 346,779.58 × 154,536.90
  4. Step 4: Simplify right side
    251,249.92x = 53,590,241,830.13
  5. Step 5: Solve for x
    x = 53,590,241,830.13/251,249.92
  6. Step 6: Final answer
    x = 213,294.56

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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.