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Finding the Fourth Proportional to 124,676.92, 172,053.24 and 68,088.28

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Solution

The fourth proportional to 124,676.92, 172,053.24 and 68,088.28 is: 93,961.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,676.92 : 172,053.24 = 68,088.28 : x
  2. Step 2: Convert to fraction form
    124,676.92/172,053.24 = 68,088.28/x
  3. Step 3: Cross multiply
    124,676.92x = 172,053.24 × 68,088.28
  4. Step 4: Simplify right side
    124,676.92x = 11,714,809,180.03
  5. Step 5: Solve for x
    x = 11,714,809,180.03/124,676.92
  6. Step 6: Final answer
    x = 93,961.33

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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.