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Finding the Fourth Proportional to 289,269.29, 399,144.11 and 181,763.19

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Solution

The fourth proportional to 289,269.29, 399,144.11 and 181,763.19 is: 250,803.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,269.29 : 399,144.11 = 181,763.19 : x
  2. Step 2: Convert to fraction form
    289,269.29/399,144.11 = 181,763.19/x
  3. Step 3: Cross multiply
    289,269.29x = 399,144.11 × 181,763.19
  4. Step 4: Simplify right side
    289,269.29x = 72,549,705,794.50
  5. Step 5: Solve for x
    x = 72,549,705,794.50/289,269.29
  6. Step 6: Final answer
    x = 250,803.34

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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.