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Finding the Fourth Proportional to 114,651.81, 171,938.84 and 43,557.30

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Solution

The fourth proportional to 114,651.81, 171,938.84 and 43,557.30 is: 65,321.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,651.81 : 171,938.84 = 43,557.30 : x
  2. Step 2: Convert to fraction form
    114,651.81/171,938.84 = 43,557.30/x
  3. Step 3: Cross multiply
    114,651.81x = 171,938.84 × 43,557.30
  4. Step 4: Simplify right side
    114,651.81x = 7,489,191,417.75
  5. Step 5: Solve for x
    x = 7,489,191,417.75/114,651.81
  6. Step 6: Final answer
    x = 65,321.18

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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.