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Finding the Fourth Proportional to 144,066.96, 215,952.66 and 55,296.54

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Solution

The fourth proportional to 144,066.96, 215,952.66 and 55,296.54 is: 82,888.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,066.96 : 215,952.66 = 55,296.54 : x
  2. Step 2: Convert to fraction form
    144,066.96/215,952.66 = 55,296.54/x
  3. Step 3: Cross multiply
    144,066.96x = 215,952.66 × 55,296.54
  4. Step 4: Simplify right side
    144,066.96x = 11,941,434,901.80
  5. Step 5: Solve for x
    x = 11,941,434,901.80/144,066.96
  6. Step 6: Final answer
    x = 82,888.09

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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.