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Finding the Fourth Proportional to 109,846.40, 164,834.40 and 39,716.60

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Solution

The fourth proportional to 109,846.40, 164,834.40 and 39,716.60 is: 59,598.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,846.40 : 164,834.40 = 39,716.60 : x
  2. Step 2: Convert to fraction form
    109,846.40/164,834.40 = 39,716.60/x
  3. Step 3: Cross multiply
    109,846.40x = 164,834.40 × 39,716.60
  4. Step 4: Simplify right side
    109,846.40x = 6,546,661,931.04
  5. Step 5: Solve for x
    x = 6,546,661,931.04/109,846.40
  6. Step 6: Final answer
    x = 59,598.33

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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.