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Finding the Fourth Proportional to 368,516.34, 552,424.59 and 144,020.79

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Solution

The fourth proportional to 368,516.34, 552,424.59 and 144,020.79 is: 215,894.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,516.34 : 552,424.59 = 144,020.79 : x
  2. Step 2: Convert to fraction form
    368,516.34/552,424.59 = 144,020.79/x
  3. Step 3: Cross multiply
    368,516.34x = 552,424.59 × 144,020.79
  4. Step 4: Simplify right side
    368,516.34x = 79,560,625,867.23
  5. Step 5: Solve for x
    x = 79,560,625,867.23/368,516.34
  6. Step 6: Final answer
    x = 215,894.43

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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.