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Finding the Fourth Proportional to 201,621.30, 302,541.30 and 83,304.60

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Solution

The fourth proportional to 201,621.30, 302,541.30 and 83,304.60 is: 125,002.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,621.30 : 302,541.30 = 83,304.60 : x
  2. Step 2: Convert to fraction form
    201,621.30/302,541.30 = 83,304.60/x
  3. Step 3: Cross multiply
    201,621.30x = 302,541.30 × 83,304.60
  4. Step 4: Simplify right side
    201,621.30x = 25,203,081,979.98
  5. Step 5: Solve for x
    x = 25,203,081,979.98/201,621.30
  6. Step 6: Final answer
    x = 125,002.08

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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.