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Finding the Fourth Proportional to 216,859.08, 325,399.79 and 104,635.00

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Solution

The fourth proportional to 216,859.08, 325,399.79 and 104,635.00 is: 157,006.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,859.08 : 325,399.79 = 104,635.00 : x
  2. Step 2: Convert to fraction form
    216,859.08/325,399.79 = 104,635.00/x
  3. Step 3: Cross multiply
    216,859.08x = 325,399.79 × 104,635.00
  4. Step 4: Simplify right side
    216,859.08x = 34,048,206,474.74
  5. Step 5: Solve for x
    x = 34,048,206,474.74/216,859.08
  6. Step 6: Final answer
    x = 157,006.14

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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.