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Finding the Fourth Proportional to 99,428.64, 149,181.84 and 37,104

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Solution

The fourth proportional to 99,428.64, 149,181.84 and 37,104 is: 55,670.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,428.64 : 149,181.84 = 37,104 : x
  2. Step 2: Convert to fraction form
    99,428.64/149,181.84 = 37,104/x
  3. Step 3: Cross multiply
    99,428.64x = 149,181.84 × 37,104
  4. Step 4: Simplify right side
    99,428.64x = 5,535,242,991.36
  5. Step 5: Solve for x
    x = 5,535,242,991.36/99,428.64
  6. Step 6: Final answer
    x = 55,670.51

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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.