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Finding the Fourth Proportional to 241,878.10, 362,707.80 and 108,689.80

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Solution

The fourth proportional to 241,878.10, 362,707.80 and 108,689.80 is: 162,985.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,878.10 : 362,707.80 = 108,689.80 : x
  2. Step 2: Convert to fraction form
    241,878.10/362,707.80 = 108,689.80/x
  3. Step 3: Cross multiply
    241,878.10x = 362,707.80 × 108,689.80
  4. Step 4: Simplify right side
    241,878.10x = 39,422,638,240.44
  5. Step 5: Solve for x
    x = 39,422,638,240.44/241,878.10
  6. Step 6: Final answer
    x = 162,985.56

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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.