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Finding the Fourth Proportional to 68,379.61, 94,250.92 and 45,710.33

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Solution

The fourth proportional to 68,379.61, 94,250.92 and 45,710.33 is: 63,004.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,379.61 : 94,250.92 = 45,710.33 : x
  2. Step 2: Convert to fraction form
    68,379.61/94,250.92 = 45,710.33/x
  3. Step 3: Cross multiply
    68,379.61x = 94,250.92 × 45,710.33
  4. Step 4: Simplify right side
    68,379.61x = 4,308,240,686.34
  5. Step 5: Solve for x
    x = 4,308,240,686.34/68,379.61
  6. Step 6: Final answer
    x = 63,004.76

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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.