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Finding the Fourth Proportional to 265,376.90, 398,229.38 and 107,606.72

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Solution

The fourth proportional to 265,376.90, 398,229.38 and 107,606.72 is: 161,476.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,376.90 : 398,229.38 = 107,606.72 : x
  2. Step 2: Convert to fraction form
    265,376.90/398,229.38 = 107,606.72/x
  3. Step 3: Cross multiply
    265,376.90x = 398,229.38 × 107,606.72
  4. Step 4: Simplify right side
    265,376.90x = 42,852,157,389.43
  5. Step 5: Solve for x
    x = 42,852,157,389.43/265,376.90
  6. Step 6: Final answer
    x = 161,476.59

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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.