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Finding the Fourth Proportional to 213,833.67, 320,747.15 and 73,593.51

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Solution

The fourth proportional to 213,833.67, 320,747.15 and 73,593.51 is: 110,389.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,833.67 : 320,747.15 = 73,593.51 : x
  2. Step 2: Convert to fraction form
    213,833.67/320,747.15 = 73,593.51/x
  3. Step 3: Cross multiply
    213,833.67x = 320,747.15 × 73,593.51
  4. Step 4: Simplify right side
    213,833.67x = 23,604,908,223.03
  5. Step 5: Solve for x
    x = 23,604,908,223.03/213,833.67
  6. Step 6: Final answer
    x = 110,389.11

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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.