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Finding the Fourth Proportional to 68,944.32, 103,416.48 and 37,762.56

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Solution

The fourth proportional to 68,944.32, 103,416.48 and 37,762.56 is: 56,643.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,944.32 : 103,416.48 = 37,762.56 : x
  2. Step 2: Convert to fraction form
    68,944.32/103,416.48 = 37,762.56/x
  3. Step 3: Cross multiply
    68,944.32x = 103,416.48 × 37,762.56
  4. Step 4: Simplify right side
    68,944.32x = 3,905,271,030.99
  5. Step 5: Solve for x
    x = 3,905,271,030.99/68,944.32
  6. Step 6: Final answer
    x = 56,643.84

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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.