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Finding the Fourth Proportional to 225,985.44, 339,030.11 and 99,661.59

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Solution

The fourth proportional to 225,985.44, 339,030.11 and 99,661.59 is: 149,515.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,985.44 : 339,030.11 = 99,661.59 : x
  2. Step 2: Convert to fraction form
    225,985.44/339,030.11 = 99,661.59/x
  3. Step 3: Cross multiply
    225,985.44x = 339,030.11 × 99,661.59
  4. Step 4: Simplify right side
    225,985.44x = 33,788,279,509.03
  5. Step 5: Solve for x
    x = 33,788,279,509.03/225,985.44
  6. Step 6: Final answer
    x = 149,515.29

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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.