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Finding the Fourth Proportional to 98,893.34, 136,473.45 and 53,571.32

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Solution

The fourth proportional to 98,893.34, 136,473.45 and 53,571.32 is: 73,928.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,893.34 : 136,473.45 = 53,571.32 : x
  2. Step 2: Convert to fraction form
    98,893.34/136,473.45 = 53,571.32/x
  3. Step 3: Cross multiply
    98,893.34x = 136,473.45 × 53,571.32
  4. Step 4: Simplify right side
    98,893.34x = 7,311,062,179.09
  5. Step 5: Solve for x
    x = 7,311,062,179.09/98,893.34
  6. Step 6: Final answer
    x = 73,928.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.