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Finding the Fourth Proportional to 75,425.58, 104,080.14 and 45,205.29

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Solution

The fourth proportional to 75,425.58, 104,080.14 and 45,205.29 is: 62,379.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,425.58 : 104,080.14 = 45,205.29 : x
  2. Step 2: Convert to fraction form
    75,425.58/104,080.14 = 45,205.29/x
  3. Step 3: Cross multiply
    75,425.58x = 104,080.14 × 45,205.29
  4. Step 4: Simplify right side
    75,425.58x = 4,704,972,911.94
  5. Step 5: Solve for x
    x = 4,704,972,911.94/75,425.58
  6. Step 6: Final answer
    x = 62,379.01

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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.