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Finding the Fourth Proportional to 326,360.40, 489,528.30 and 89,696.94

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Solution

The fourth proportional to 326,360.40, 489,528.30 and 89,696.94 is: 134,542.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,360.40 : 489,528.30 = 89,696.94 : x
  2. Step 2: Convert to fraction form
    326,360.40/489,528.30 = 89,696.94/x
  3. Step 3: Cross multiply
    326,360.40x = 489,528.30 × 89,696.94
  4. Step 4: Simplify right side
    326,360.40x = 43,909,190,553.40
  5. Step 5: Solve for x
    x = 43,909,190,553.40/326,360.40
  6. Step 6: Final answer
    x = 134,542.03

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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.