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Finding the Fourth Proportional to 150,388.88, 207,536.65 and 89,962.07

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Solution

The fourth proportional to 150,388.88, 207,536.65 and 89,962.07 is: 124,147.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,388.88 : 207,536.65 = 89,962.07 : x
  2. Step 2: Convert to fraction form
    150,388.88/207,536.65 = 89,962.07/x
  3. Step 3: Cross multiply
    150,388.88x = 207,536.65 × 89,962.07
  4. Step 4: Simplify right side
    150,388.88x = 18,670,425,372.28
  5. Step 5: Solve for x
    x = 18,670,425,372.28/150,388.88
  6. Step 6: Final answer
    x = 124,147.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.