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Finding the Fourth Proportional to 201,781.40, 302,651.03 and 89,463.56

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Solution

The fourth proportional to 201,781.40, 302,651.03 and 89,463.56 is: 134,186.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,781.40 : 302,651.03 = 89,463.56 : x
  2. Step 2: Convert to fraction form
    201,781.40/302,651.03 = 89,463.56/x
  3. Step 3: Cross multiply
    201,781.40x = 302,651.03 × 89,463.56
  4. Step 4: Simplify right side
    201,781.40x = 27,076,237,291.87
  5. Step 5: Solve for x
    x = 27,076,237,291.87/201,781.40
  6. Step 6: Final answer
    x = 134,186.00

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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.