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Finding the Fourth Proportional to 262,636.54, 393,921.93 and 73,111.12

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Solution

The fourth proportional to 262,636.54, 393,921.93 and 73,111.12 is: 109,657.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,636.54 : 393,921.93 = 73,111.12 : x
  2. Step 2: Convert to fraction form
    262,636.54/393,921.93 = 73,111.12/x
  3. Step 3: Cross multiply
    262,636.54x = 393,921.93 × 73,111.12
  4. Step 4: Simplify right side
    262,636.54x = 28,800,071,525.25
  5. Step 5: Solve for x
    x = 28,800,071,525.25/262,636.54
  6. Step 6: Final answer
    x = 109,657.52

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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.