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Finding the Fourth Proportional to 230,946.30, 346,347.45 and 90,747.90

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Solution

The fourth proportional to 230,946.30, 346,347.45 and 90,747.90 is: 136,093.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,946.30 : 346,347.45 = 90,747.90 : x
  2. Step 2: Convert to fraction form
    230,946.30/346,347.45 = 90,747.90/x
  3. Step 3: Cross multiply
    230,946.30x = 346,347.45 × 90,747.90
  4. Step 4: Simplify right side
    230,946.30x = 31,430,303,757.86
  5. Step 5: Solve for x
    x = 31,430,303,757.86/230,946.30
  6. Step 6: Final answer
    x = 136,093.56

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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.