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Finding the Fourth Proportional to 230,894.70, 346,309.65 and 73,139.10

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Solution

The fourth proportional to 230,894.70, 346,309.65 and 73,139.10 is: 109,698.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,894.70 : 346,309.65 = 73,139.10 : x
  2. Step 2: Convert to fraction form
    230,894.70/346,309.65 = 73,139.10/x
  3. Step 3: Cross multiply
    230,894.70x = 346,309.65 × 73,139.10
  4. Step 4: Simplify right side
    230,894.70x = 25,328,776,122.32
  5. Step 5: Solve for x
    x = 25,328,776,122.32/230,894.70
  6. Step 6: Final answer
    x = 109,698.39

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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.