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Finding the Fourth Proportional to 201,741.40, 302,612.10 and 130,882.60

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Solution

The fourth proportional to 201,741.40, 302,612.10 and 130,882.60 is: 196,323.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,741.40 : 302,612.10 = 130,882.60 : x
  2. Step 2: Convert to fraction form
    201,741.40/302,612.10 = 130,882.60/x
  3. Step 3: Cross multiply
    201,741.40x = 302,612.10 × 130,882.60
  4. Step 4: Simplify right side
    201,741.40x = 39,606,658,439.46
  5. Step 5: Solve for x
    x = 39,606,658,439.46/201,741.40
  6. Step 6: Final answer
    x = 196,323.90

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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.