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Finding the Fourth Proportional to 607,759.88, 911,640.48 and 158,480.36

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Solution

The fourth proportional to 607,759.88, 911,640.48 and 158,480.36 is: 237,720.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,759.88 : 911,640.48 = 158,480.36 : x
  2. Step 2: Convert to fraction form
    607,759.88/911,640.48 = 158,480.36/x
  3. Step 3: Cross multiply
    607,759.88x = 911,640.48 × 158,480.36
  4. Step 4: Simplify right side
    607,759.88x = 144,477,111,460.97
  5. Step 5: Solve for x
    x = 144,477,111,460.97/607,759.88
  6. Step 6: Final answer
    x = 237,720.71

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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.