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Finding the Fourth Proportional to 201,990.38, 302,650.76 and 122,865.26

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Solution

The fourth proportional to 201,990.38, 302,650.76 and 122,865.26 is: 184,094.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,990.38 : 302,650.76 = 122,865.26 : x
  2. Step 2: Convert to fraction form
    201,990.38/302,650.76 = 122,865.26/x
  3. Step 3: Cross multiply
    201,990.38x = 302,650.76 × 122,865.26
  4. Step 4: Simplify right side
    201,990.38x = 37,185,264,316.60
  5. Step 5: Solve for x
    x = 37,185,264,316.60/201,990.38
  6. Step 6: Final answer
    x = 184,094.23

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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.