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Finding the Fourth Proportional to 207,083.76, 310,626.06 and 57,324.48

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Solution

The fourth proportional to 207,083.76, 310,626.06 and 57,324.48 is: 85,986.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,083.76 : 310,626.06 = 57,324.48 : x
  2. Step 2: Convert to fraction form
    207,083.76/310,626.06 = 57,324.48/x
  3. Step 3: Cross multiply
    207,083.76x = 310,626.06 × 57,324.48
  4. Step 4: Simplify right side
    207,083.76x = 17,806,477,363.95
  5. Step 5: Solve for x
    x = 17,806,477,363.95/207,083.76
  6. Step 6: Final answer
    x = 85,986.84

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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.