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Finding the Fourth Proportional to 124,675.90, 172,054.11 and 68,088.94

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Solution

The fourth proportional to 124,675.90, 172,054.11 and 68,088.94 is: 93,963.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,675.90 : 172,054.11 = 68,088.94 : x
  2. Step 2: Convert to fraction form
    124,675.90/172,054.11 = 68,088.94/x
  3. Step 3: Cross multiply
    124,675.90x = 172,054.11 × 68,088.94
  4. Step 4: Simplify right side
    124,675.90x = 11,714,981,972.54
  5. Step 5: Solve for x
    x = 11,714,981,972.54/124,675.90
  6. Step 6: Final answer
    x = 93,963.48

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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.