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Finding the Fourth Proportional to 489,072.80, 733,738.80 and 173,496.80

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Solution

The fourth proportional to 489,072.80, 733,738.80 and 173,496.80 is: 260,291.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,072.80 : 733,738.80 = 173,496.80 : x
  2. Step 2: Convert to fraction form
    489,072.80/733,738.80 = 173,496.80/x
  3. Step 3: Cross multiply
    489,072.80x = 733,738.80 × 173,496.80
  4. Step 4: Simplify right side
    489,072.80x = 127,301,333,835.84
  5. Step 5: Solve for x
    x = 127,301,333,835.84/489,072.80
  6. Step 6: Final answer
    x = 260,291.18

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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.