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Finding the Fourth Proportional to 109,205.55, 163,699.11 and 46,040.94

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Solution

The fourth proportional to 109,205.55, 163,699.11 and 46,040.94 is: 69,015.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,205.55 : 163,699.11 = 46,040.94 : x
  2. Step 2: Convert to fraction form
    109,205.55/163,699.11 = 46,040.94/x
  3. Step 3: Cross multiply
    109,205.55x = 163,699.11 × 46,040.94
  4. Step 4: Simplify right side
    109,205.55x = 7,536,860,901.56
  5. Step 5: Solve for x
    x = 7,536,860,901.56/109,205.55
  6. Step 6: Final answer
    x = 69,015.37

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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.