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Finding the Fourth Proportional to 216,837.80, 325,069.62 and 104,363.28

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Solution

The fourth proportional to 216,837.80, 325,069.62 and 104,363.28 is: 156,454.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,837.80 : 325,069.62 = 104,363.28 : x
  2. Step 2: Convert to fraction form
    216,837.80/325,069.62 = 104,363.28/x
  3. Step 3: Cross multiply
    216,837.80x = 325,069.62 × 104,363.28
  4. Step 4: Simplify right side
    216,837.80x = 33,925,331,771.55
  5. Step 5: Solve for x
    x = 33,925,331,771.55/216,837.80
  6. Step 6: Final answer
    x = 156,454.88

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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.