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Finding the Fourth Proportional to 239,476.16, 358,670.48 and 185,736.72

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Solution

The fourth proportional to 239,476.16, 358,670.48 and 185,736.72 is: 278,183.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,476.16 : 358,670.48 = 185,736.72 : x
  2. Step 2: Convert to fraction form
    239,476.16/358,670.48 = 185,736.72/x
  3. Step 3: Cross multiply
    239,476.16x = 358,670.48 × 185,736.72
  4. Step 4: Simplify right side
    239,476.16x = 66,618,278,516.03
  5. Step 5: Solve for x
    x = 66,618,278,516.03/239,476.16
  6. Step 6: Final answer
    x = 278,183.34

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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.