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Finding the Fourth Proportional to 109,709.64, 164,564.46 and 26,603.64

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Solution

The fourth proportional to 109,709.64, 164,564.46 and 26,603.64 is: 39,905.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,709.64 : 164,564.46 = 26,603.64 : x
  2. Step 2: Convert to fraction form
    109,709.64/164,564.46 = 26,603.64/x
  3. Step 3: Cross multiply
    109,709.64x = 164,564.46 × 26,603.64
  4. Step 4: Simplify right side
    109,709.64x = 4,378,013,650.63
  5. Step 5: Solve for x
    x = 4,378,013,650.63/109,709.64
  6. Step 6: Final answer
    x = 39,905.46

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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.