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Finding the Fourth Proportional to 92,573.94, 138,867.38 and 45,814.26

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Solution

The fourth proportional to 92,573.94, 138,867.38 and 45,814.26 is: 68,724.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,573.94 : 138,867.38 = 45,814.26 : x
  2. Step 2: Convert to fraction form
    92,573.94/138,867.38 = 45,814.26/x
  3. Step 3: Cross multiply
    92,573.94x = 138,867.38 × 45,814.26
  4. Step 4: Simplify right side
    92,573.94x = 6,362,106,252.84
  5. Step 5: Solve for x
    x = 6,362,106,252.84/92,573.94
  6. Step 6: Final answer
    x = 68,724.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.