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Finding the Fourth Proportional to 46,208.34, 68,978.16 and 40,603.26

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Solution

The fourth proportional to 46,208.34, 68,978.16 and 40,603.26 is: 60,611.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,208.34 : 68,978.16 = 40,603.26 : x
  2. Step 2: Convert to fraction form
    46,208.34/68,978.16 = 40,603.26/x
  3. Step 3: Cross multiply
    46,208.34x = 68,978.16 × 40,603.26
  4. Step 4: Simplify right side
    46,208.34x = 2,800,738,164.80
  5. Step 5: Solve for x
    x = 2,800,738,164.80/46,208.34
  6. Step 6: Final answer
    x = 60,611.10

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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.