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Finding the Fourth Proportional to 216,892.80, 325,329.62 and 59,121.24

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Solution

The fourth proportional to 216,892.80, 325,329.62 and 59,121.24 is: 88,679.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,892.80 : 325,329.62 = 59,121.24 : x
  2. Step 2: Convert to fraction form
    216,892.80/325,329.62 = 59,121.24/x
  3. Step 3: Cross multiply
    216,892.80x = 325,329.62 × 59,121.24
  4. Step 4: Simplify right side
    216,892.80x = 19,233,890,543.13
  5. Step 5: Solve for x
    x = 19,233,890,543.13/216,892.80
  6. Step 6: Final answer
    x = 88,679.25

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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.