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Finding the Fourth Proportional to 46,208.82, 68,978.92 and 40,603.76

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Solution

The fourth proportional to 46,208.82, 68,978.92 and 40,603.76 is: 60,611.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,208.82 : 68,978.92 = 40,603.76 : x
  2. Step 2: Convert to fraction form
    46,208.82/68,978.92 = 40,603.76/x
  3. Step 3: Cross multiply
    46,208.82x = 68,978.92 × 40,603.76
  4. Step 4: Simplify right side
    46,208.82x = 2,800,803,512.74
  5. Step 5: Solve for x
    x = 2,800,803,512.74/46,208.82
  6. Step 6: Final answer
    x = 60,611.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.