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Finding the Fourth Proportional to 144,004.60, 215,942.10 and 55,228.60

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Solution

The fourth proportional to 144,004.60, 215,942.10 and 55,228.60 is: 82,818.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,004.60 : 215,942.10 = 55,228.60 : x
  2. Step 2: Convert to fraction form
    144,004.60/215,942.10 = 55,228.60/x
  3. Step 3: Cross multiply
    144,004.60x = 215,942.10 × 55,228.60
  4. Step 4: Simplify right side
    144,004.60x = 11,926,179,864.06
  5. Step 5: Solve for x
    x = 11,926,179,864.06/144,004.60
  6. Step 6: Final answer
    x = 82,818.05

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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.