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Finding the Fourth Proportional to 68,994.37, 103,492.23 and 37,812.61

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Solution

The fourth proportional to 68,994.37, 103,492.23 and 37,812.61 is: 56,719.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,994.37 : 103,492.23 = 37,812.61 : x
  2. Step 2: Convert to fraction form
    68,994.37/103,492.23 = 37,812.61/x
  3. Step 3: Cross multiply
    68,994.37x = 103,492.23 × 37,812.61
  4. Step 4: Simplify right side
    68,994.37x = 3,913,311,331.02
  5. Step 5: Solve for x
    x = 3,913,311,331.02/68,994.37
  6. Step 6: Final answer
    x = 56,719.28

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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.