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Finding the Fourth Proportional to 68,014.16, 93,629.76 and 56,058.56

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Solution

The fourth proportional to 68,014.16, 93,629.76 and 56,058.56 is: 77,171.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,014.16 : 93,629.76 = 56,058.56 : x
  2. Step 2: Convert to fraction form
    68,014.16/93,629.76 = 56,058.56/x
  3. Step 3: Cross multiply
    68,014.16x = 93,629.76 × 56,058.56
  4. Step 4: Simplify right side
    68,014.16x = 5,248,749,518.75
  5. Step 5: Solve for x
    x = 5,248,749,518.75/68,014.16
  6. Step 6: Final answer
    x = 77,171.42

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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.