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Finding the Fourth Proportional to 147,990.51, 204,157.67 and 96,989.67

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Solution

The fourth proportional to 147,990.51, 204,157.67 and 96,989.67 is: 133,800.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,990.51 : 204,157.67 = 96,989.67 : x
  2. Step 2: Convert to fraction form
    147,990.51/204,157.67 = 96,989.67/x
  3. Step 3: Cross multiply
    147,990.51x = 204,157.67 × 96,989.67
  4. Step 4: Simplify right side
    147,990.51x = 19,801,184,556.32
  5. Step 5: Solve for x
    x = 19,801,184,556.32/147,990.51
  6. Step 6: Final answer
    x = 133,800.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.