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Finding the Fourth Proportional to 270,618.44, 405,484.38 and 144,124.38

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Solution

The fourth proportional to 270,618.44, 405,484.38 and 144,124.38 is: 215,950.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,618.44 : 405,484.38 = 144,124.38 : x
  2. Step 2: Convert to fraction form
    270,618.44/405,484.38 = 144,124.38/x
  3. Step 3: Cross multiply
    270,618.44x = 405,484.38 × 144,124.38
  4. Step 4: Simplify right side
    270,618.44x = 58,440,184,867.18
  5. Step 5: Solve for x
    x = 58,440,184,867.18/270,618.44
  6. Step 6: Final answer
    x = 215,950.49

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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.