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Finding the Fourth Proportional to 265,239.54, 397,962.99 and 99,040.50

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Solution

The fourth proportional to 265,239.54, 397,962.99 and 99,040.50 is: 148,599.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,239.54 : 397,962.99 = 99,040.50 : x
  2. Step 2: Convert to fraction form
    265,239.54/397,962.99 = 99,040.50/x
  3. Step 3: Cross multiply
    265,239.54x = 397,962.99 × 99,040.50
  4. Step 4: Simplify right side
    265,239.54x = 39,414,453,511.10
  5. Step 5: Solve for x
    x = 39,414,453,511.10/265,239.54
  6. Step 6: Final answer
    x = 148,599.46

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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.