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Finding the Fourth Proportional to 215,291.13, 322,953.26 and 65,544.27

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Solution

The fourth proportional to 215,291.13, 322,953.26 and 65,544.27 is: 98,321.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,291.13 : 322,953.26 = 65,544.27 : x
  2. Step 2: Convert to fraction form
    215,291.13/322,953.26 = 65,544.27/x
  3. Step 3: Cross multiply
    215,291.13x = 322,953.26 × 65,544.27
  4. Step 4: Simplify right side
    215,291.13x = 21,167,735,343.10
  5. Step 5: Solve for x
    x = 21,167,735,343.10/215,291.13
  6. Step 6: Final answer
    x = 98,321.45

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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.