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Finding the Fourth Proportional to 216,399.93, 324,603.51 and 98,072.28

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Solution

The fourth proportional to 216,399.93, 324,603.51 and 98,072.28 is: 147,110.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,399.93 : 324,603.51 = 98,072.28 : x
  2. Step 2: Convert to fraction form
    216,399.93/324,603.51 = 98,072.28/x
  3. Step 3: Cross multiply
    216,399.93x = 324,603.51 × 98,072.28
  4. Step 4: Simplify right side
    216,399.93x = 31,834,606,321.70
  5. Step 5: Solve for x
    x = 31,834,606,321.70/216,399.93
  6. Step 6: Final answer
    x = 147,110.06

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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.