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Finding the Fourth Proportional to 106,619.60, 141,900.26 and 106,619.60

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Solution

The fourth proportional to 106,619.60, 141,900.26 and 106,619.60 is: 141,900.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,619.60 : 141,900.26 = 106,619.60 : x
  2. Step 2: Convert to fraction form
    106,619.60/141,900.26 = 106,619.60/x
  3. Step 3: Cross multiply
    106,619.60x = 141,900.26 × 106,619.60
  4. Step 4: Simplify right side
    106,619.60x = 15,129,348,961.10
  5. Step 5: Solve for x
    x = 15,129,348,961.10/106,619.60
  6. Step 6: Final answer
    x = 141,900.26

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.