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Finding the Fourth Proportional to 216,542.44, 324,810.10 and 64,739.89

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Solution

The fourth proportional to 216,542.44, 324,810.10 and 64,739.89 is: 97,108.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,542.44 : 324,810.10 = 64,739.89 : x
  2. Step 2: Convert to fraction form
    216,542.44/324,810.10 = 64,739.89/x
  3. Step 3: Cross multiply
    216,542.44x = 324,810.10 × 64,739.89
  4. Step 4: Simplify right side
    216,542.44x = 21,028,170,144.89
  5. Step 5: Solve for x
    x = 21,028,170,144.89/216,542.44
  6. Step 6: Final answer
    x = 97,108.77

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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.