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Finding the Fourth Proportional to 88,655.31, 122,389.38 and 68,466.87

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Solution

The fourth proportional to 88,655.31, 122,389.38 and 68,466.87 is: 94,519.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,655.31 : 122,389.38 = 68,466.87 : x
  2. Step 2: Convert to fraction form
    88,655.31/122,389.38 = 68,466.87/x
  3. Step 3: Cross multiply
    88,655.31x = 122,389.38 × 68,466.87
  4. Step 4: Simplify right side
    88,655.31x = 8,379,617,769.84
  5. Step 5: Solve for x
    x = 8,379,617,769.84/88,655.31
  6. Step 6: Final answer
    x = 94,519.07

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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.