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Finding the Fourth Proportional to 144,873.56, 217,268.21 and 56,107.28

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Solution

The fourth proportional to 144,873.56, 217,268.21 and 56,107.28 is: 84,144.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,873.56 : 217,268.21 = 56,107.28 : x
  2. Step 2: Convert to fraction form
    144,873.56/217,268.21 = 56,107.28/x
  3. Step 3: Cross multiply
    144,873.56x = 217,268.21 × 56,107.28
  4. Step 4: Simplify right side
    144,873.56x = 12,190,326,926.69
  5. Step 5: Solve for x
    x = 12,190,326,926.69/144,873.56
  6. Step 6: Final answer
    x = 84,144.60

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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.