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Finding the Fourth Proportional to 321,717.95, 482,564.79 and 97,072.39

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Solution

The fourth proportional to 321,717.95, 482,564.79 and 97,072.39 is: 145,604.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,717.95 : 482,564.79 = 97,072.39 : x
  2. Step 2: Convert to fraction form
    321,717.95/482,564.79 = 97,072.39/x
  3. Step 3: Cross multiply
    321,717.95x = 482,564.79 × 97,072.39
  4. Step 4: Simplify right side
    321,717.95x = 46,843,718,098.35
  5. Step 5: Solve for x
    x = 46,843,718,098.35/321,717.95
  6. Step 6: Final answer
    x = 145,604.93

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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.