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Finding the Fourth Proportional to 81,804.69, 122,667.75 and 48,529.08

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Solution

The fourth proportional to 81,804.69, 122,667.75 and 48,529.08 is: 72,770.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,804.69 : 122,667.75 = 48,529.08 : x
  2. Step 2: Convert to fraction form
    81,804.69/122,667.75 = 48,529.08/x
  3. Step 3: Cross multiply
    81,804.69x = 122,667.75 × 48,529.08
  4. Step 4: Simplify right side
    81,804.69x = 5,952,953,053.17
  5. Step 5: Solve for x
    x = 5,952,953,053.17/81,804.69
  6. Step 6: Final answer
    x = 72,770.31

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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.