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Finding the Fourth Proportional to 144,740.40, 217,110.60 and 119,857.20

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Solution

The fourth proportional to 144,740.40, 217,110.60 and 119,857.20 is: 179,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,740.40 : 217,110.60 = 119,857.20 : x
  2. Step 2: Convert to fraction form
    144,740.40/217,110.60 = 119,857.20/x
  3. Step 3: Cross multiply
    144,740.40x = 217,110.60 × 119,857.20
  4. Step 4: Simplify right side
    144,740.40x = 26,022,268,606.32
  5. Step 5: Solve for x
    x = 26,022,268,606.32/144,740.40
  6. Step 6: Final answer
    x = 179,785.80

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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.