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Finding the Fourth Proportional to 102,908.90, 144,383.50 and 102,908.90

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Solution

The fourth proportional to 102,908.90, 144,383.50 and 102,908.90 is: 144,383.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,908.90 : 144,383.50 = 102,908.90 : x
  2. Step 2: Convert to fraction form
    102,908.90/144,383.50 = 102,908.90/x
  3. Step 3: Cross multiply
    102,908.90x = 144,383.50 × 102,908.90
  4. Step 4: Simplify right side
    102,908.90x = 14,858,347,163.15
  5. Step 5: Solve for x
    x = 14,858,347,163.15/102,908.90
  6. Step 6: Final answer
    x = 144,383.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.