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Finding the Fourth Proportional to 326,370.70, 489,219.24 and 136,941.10

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Solution

The fourth proportional to 326,370.70, 489,219.24 and 136,941.10 is: 205,270.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,370.70 : 489,219.24 = 136,941.10 : x
  2. Step 2: Convert to fraction form
    326,370.70/489,219.24 = 136,941.10/x
  3. Step 3: Cross multiply
    326,370.70x = 489,219.24 × 136,941.10
  4. Step 4: Simplify right side
    326,370.70x = 66,994,220,866.76
  5. Step 5: Solve for x
    x = 66,994,220,866.76/326,370.70
  6. Step 6: Final answer
    x = 205,270.33

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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.