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Finding the Fourth Proportional to 265,915.88, 366,964.42 and 145,057.32

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Solution

The fourth proportional to 265,915.88, 366,964.42 and 145,057.32 is: 200,179.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,915.88 : 366,964.42 = 145,057.32 : x
  2. Step 2: Convert to fraction form
    265,915.88/366,964.42 = 145,057.32/x
  3. Step 3: Cross multiply
    265,915.88x = 366,964.42 × 145,057.32
  4. Step 4: Simplify right side
    265,915.88x = 53,230,875,300.55
  5. Step 5: Solve for x
    x = 53,230,875,300.55/265,915.88
  6. Step 6: Final answer
    x = 200,179.38

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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.