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Finding the Fourth Proportional to 201,443.76, 302,103.75 and 66,482.97

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Solution

The fourth proportional to 201,443.76, 302,103.75 and 66,482.97 is: 99,704.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,443.76 : 302,103.75 = 66,482.97 : x
  2. Step 2: Convert to fraction form
    201,443.76/302,103.75 = 66,482.97/x
  3. Step 3: Cross multiply
    201,443.76x = 302,103.75 × 66,482.97
  4. Step 4: Simplify right side
    201,443.76x = 20,084,754,548.14
  5. Step 5: Solve for x
    x = 20,084,754,548.14/201,443.76
  6. Step 6: Final answer
    x = 99,704.03

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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.