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Finding the Fourth Proportional to 68,733.60, 102,927.60 and 45,232.80

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Solution

The fourth proportional to 68,733.60, 102,927.60 and 45,232.80 is: 67,735.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,733.60 : 102,927.60 = 45,232.80 : x
  2. Step 2: Convert to fraction form
    68,733.60/102,927.60 = 45,232.80/x
  3. Step 3: Cross multiply
    68,733.60x = 102,927.60 × 45,232.80
  4. Step 4: Simplify right side
    68,733.60x = 4,655,703,545.28
  5. Step 5: Solve for x
    x = 4,655,703,545.28/68,733.60
  6. Step 6: Final answer
    x = 67,735.48

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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.