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Finding the Fourth Proportional to 193,672.40, 290,525.33 and 53,431.02

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Solution

The fourth proportional to 193,672.40, 290,525.33 and 53,431.02 is: 80,151.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,672.40 : 290,525.33 = 53,431.02 : x
  2. Step 2: Convert to fraction form
    193,672.40/290,525.33 = 53,431.02/x
  3. Step 3: Cross multiply
    193,672.40x = 290,525.33 × 53,431.02
  4. Step 4: Simplify right side
    193,672.40x = 15,523,064,450.58
  5. Step 5: Solve for x
    x = 15,523,064,450.58/193,672.40
  6. Step 6: Final answer
    x = 80,151.15

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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.