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Finding the Fourth Proportional to 216,923.06, 325,308.36 and 65,074.86

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Solution

The fourth proportional to 216,923.06, 325,308.36 and 65,074.86 is: 97,589.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,923.06 : 325,308.36 = 65,074.86 : x
  2. Step 2: Convert to fraction form
    216,923.06/325,308.36 = 65,074.86/x
  3. Step 3: Cross multiply
    216,923.06x = 325,308.36 × 65,074.86
  4. Step 4: Simplify right side
    216,923.06x = 21,169,395,983.83
  5. Step 5: Solve for x
    x = 21,169,395,983.83/216,923.06
  6. Step 6: Final answer
    x = 97,589.42

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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.