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Finding the Fourth Proportional to 111,603.74, 167,263.25 and 52,308.77

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Solution

The fourth proportional to 111,603.74, 167,263.25 and 52,308.77 is: 78,396.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,603.74 : 167,263.25 = 52,308.77 : x
  2. Step 2: Convert to fraction form
    111,603.74/167,263.25 = 52,308.77/x
  3. Step 3: Cross multiply
    111,603.74x = 167,263.25 × 52,308.77
  4. Step 4: Simplify right side
    111,603.74x = 8,749,333,775.84
  5. Step 5: Solve for x
    x = 8,749,333,775.84/111,603.74
  6. Step 6: Final answer
    x = 78,396.42

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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.