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Finding the Fourth Proportional to 144,998.40, 217,497.60 and 108,134.40

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Solution

The fourth proportional to 144,998.40, 217,497.60 and 108,134.40 is: 162,201.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,998.40 : 217,497.60 = 108,134.40 : x
  2. Step 2: Convert to fraction form
    144,998.40/217,497.60 = 108,134.40/x
  3. Step 3: Cross multiply
    144,998.40x = 217,497.60 × 108,134.40
  4. Step 4: Simplify right side
    144,998.40x = 23,518,972,477.44
  5. Step 5: Solve for x
    x = 23,518,972,477.44/144,998.40
  6. Step 6: Final answer
    x = 162,201.60

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1.5x scale

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.