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Finding the Fourth Proportional to 68,026.46, 93,786.34 and 55,881.32

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Solution

The fourth proportional to 68,026.46, 93,786.34 and 55,881.32 is: 77,042.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,026.46 : 93,786.34 = 55,881.32 : x
  2. Step 2: Convert to fraction form
    68,026.46/93,786.34 = 55,881.32/x
  3. Step 3: Cross multiply
    68,026.46x = 93,786.34 × 55,881.32
  4. Step 4: Simplify right side
    68,026.46x = 5,240,904,477.17
  5. Step 5: Solve for x
    x = 5,240,904,477.17/68,026.46
  6. Step 6: Final answer
    x = 77,042.15

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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.