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Finding the Fourth Proportional to 225,655.88, 338,711.63 and 99,352.37

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Solution

The fourth proportional to 225,655.88, 338,711.63 and 99,352.37 is: 149,128.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,655.88 : 338,711.63 = 99,352.37 : x
  2. Step 2: Convert to fraction form
    225,655.88/338,711.63 = 99,352.37/x
  3. Step 3: Cross multiply
    225,655.88x = 338,711.63 × 99,352.37
  4. Step 4: Simplify right side
    225,655.88x = 33,651,803,537.08
  5. Step 5: Solve for x
    x = 33,651,803,537.08/225,655.88
  6. Step 6: Final answer
    x = 149,128.86

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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.