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Finding the Fourth Proportional to 68,013.66, 93,629.07 and 56,058.06

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Solution

The fourth proportional to 68,013.66, 93,629.07 and 56,058.06 is: 77,170.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,013.66 : 93,629.07 = 56,058.06 : x
  2. Step 2: Convert to fraction form
    68,013.66/93,629.07 = 56,058.06/x
  3. Step 3: Cross multiply
    68,013.66x = 93,629.07 × 56,058.06
  4. Step 4: Simplify right side
    68,013.66x = 5,248,664,023.80
  5. Step 5: Solve for x
    x = 5,248,664,023.80/68,013.66
  6. Step 6: Final answer
    x = 77,170.73

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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.