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Finding the Fourth Proportional to 289,158.14, 398,990.61 and 181,652.04

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Solution

The fourth proportional to 289,158.14, 398,990.61 and 181,652.04 is: 250,649.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,158.14 : 398,990.61 = 181,652.04 : x
  2. Step 2: Convert to fraction form
    289,158.14/398,990.61 = 181,652.04/x
  3. Step 3: Cross multiply
    289,158.14x = 398,990.61 × 181,652.04
  4. Step 4: Simplify right side
    289,158.14x = 72,477,458,247.34
  5. Step 5: Solve for x
    x = 72,477,458,247.34/289,158.14
  6. Step 6: Final answer
    x = 250,649.90

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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.