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Finding the Fourth Proportional to 201,687.19, 302,544.63 and 66,751.01

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Solution

The fourth proportional to 201,687.19, 302,544.63 and 66,751.01 is: 100,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,687.19 : 302,544.63 = 66,751.01 : x
  2. Step 2: Convert to fraction form
    201,687.19/302,544.63 = 66,751.01/x
  3. Step 3: Cross multiply
    201,687.19x = 302,544.63 × 66,751.01
  4. Step 4: Simplify right side
    201,687.19x = 20,195,159,244.40
  5. Step 5: Solve for x
    x = 20,195,159,244.40/201,687.19
  6. Step 6: Final answer
    x = 100,131.10

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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.