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Finding the Fourth Proportional to 59,399.49, 89,100.36 and 19,418.49

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Solution

The fourth proportional to 59,399.49, 89,100.36 and 19,418.49 is: 29,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,399.49 : 89,100.36 = 19,418.49 : x
  2. Step 2: Convert to fraction form
    59,399.49/89,100.36 = 19,418.49/x
  3. Step 3: Cross multiply
    59,399.49x = 89,100.36 × 19,418.49
  4. Step 4: Simplify right side
    59,399.49x = 1,730,194,449.66
  5. Step 5: Solve for x
    x = 1,730,194,449.66/59,399.49
  6. Step 6: Final answer
    x = 29,128.10

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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.