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Finding the Fourth Proportional to 124,676.36, 172,050.72 and 68,087.96

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Solution

The fourth proportional to 124,676.36, 172,050.72 and 68,087.96 is: 93,959.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,676.36 : 172,050.72 = 68,087.96 : x
  2. Step 2: Convert to fraction form
    124,676.36/172,050.72 = 68,087.96/x
  3. Step 3: Cross multiply
    124,676.36x = 172,050.72 × 68,087.96
  4. Step 4: Simplify right side
    124,676.36x = 11,714,582,541.33
  5. Step 5: Solve for x
    x = 11,714,582,541.33/124,676.36
  6. Step 6: Final answer
    x = 93,959.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.