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Finding the Fourth Proportional to 534,339.76, 801,511.25 and 129,530.36

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Solution

The fourth proportional to 534,339.76, 801,511.25 and 129,530.36 is: 194,295.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,339.76 : 801,511.25 = 129,530.36 : x
  2. Step 2: Convert to fraction form
    534,339.76/801,511.25 = 129,530.36/x
  3. Step 3: Cross multiply
    534,339.76x = 801,511.25 × 129,530.36
  4. Step 4: Simplify right side
    534,339.76x = 103,820,040,756.55
  5. Step 5: Solve for x
    x = 103,820,040,756.55/534,339.76
  6. Step 6: Final answer
    x = 194,295.93

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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.