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Finding the Fourth Proportional to 144,378.27, 216,604.31 and 55,607.94

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Solution

The fourth proportional to 144,378.27, 216,604.31 and 55,607.94 is: 83,426.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,378.27 : 216,604.31 = 55,607.94 : x
  2. Step 2: Convert to fraction form
    144,378.27/216,604.31 = 55,607.94/x
  3. Step 3: Cross multiply
    144,378.27x = 216,604.31 × 55,607.94
  4. Step 4: Simplify right side
    144,378.27x = 12,044,919,474.22
  5. Step 5: Solve for x
    x = 12,044,919,474.22/144,378.27
  6. Step 6: Final answer
    x = 83,426.12

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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.