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Finding the Fourth Proportional to 213,610.70, 320,329.65 and 73,297.10

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Solution

The fourth proportional to 213,610.70, 320,329.65 and 73,297.10 is: 109,916.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,610.70 : 320,329.65 = 73,297.10 : x
  2. Step 2: Convert to fraction form
    213,610.70/320,329.65 = 73,297.10/x
  3. Step 3: Cross multiply
    213,610.70x = 320,329.65 × 73,297.10
  4. Step 4: Simplify right side
    213,610.70x = 23,479,234,389.02
  5. Step 5: Solve for x
    x = 23,479,234,389.02/213,610.70
  6. Step 6: Final answer
    x = 109,916.00

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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.