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Finding the Fourth Proportional to 92,448.48, 138,736.08 and 33,284.64

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Solution

The fourth proportional to 92,448.48, 138,736.08 and 33,284.64 is: 49,949.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,448.48 : 138,736.08 = 33,284.64 : x
  2. Step 2: Convert to fraction form
    92,448.48/138,736.08 = 33,284.64/x
  3. Step 3: Cross multiply
    92,448.48x = 138,736.08 × 33,284.64
  4. Step 4: Simplify right side
    92,448.48x = 4,617,780,477.81
  5. Step 5: Solve for x
    x = 4,617,780,477.81/92,448.48
  6. Step 6: Final answer
    x = 49,949.77

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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.