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Finding the Fourth Proportional to 270,316.64, 373,021.90 and 149,450.87

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Solution

The fourth proportional to 270,316.64, 373,021.90 and 149,450.87 is: 206,233.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,316.64 : 373,021.90 = 149,450.87 : x
  2. Step 2: Convert to fraction form
    270,316.64/373,021.90 = 149,450.87/x
  3. Step 3: Cross multiply
    270,316.64x = 373,021.90 × 149,450.87
  4. Step 4: Simplify right side
    270,316.64x = 55,748,447,484.05
  5. Step 5: Solve for x
    x = 55,748,447,484.05/270,316.64
  6. Step 6: Final answer
    x = 206,233.87

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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.