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Finding the Fourth Proportional to 289,561.72, 399,096.04 and 192,592.04

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Solution

The fourth proportional to 289,561.72, 399,096.04 and 192,592.04 is: 265,445.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,561.72 : 399,096.04 = 192,592.04 : x
  2. Step 2: Convert to fraction form
    289,561.72/399,096.04 = 192,592.04/x
  3. Step 3: Cross multiply
    289,561.72x = 399,096.04 × 192,592.04
  4. Step 4: Simplify right side
    289,561.72x = 76,862,720,499.52
  5. Step 5: Solve for x
    x = 76,862,720,499.52/289,561.72
  6. Step 6: Final answer
    x = 265,445.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.