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Finding the Fourth Proportional to 104,804.65, 144,630.42 and 57,057.97

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Solution

The fourth proportional to 104,804.65, 144,630.42 and 57,057.97 is: 78,740.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,804.65 : 144,630.42 = 57,057.97 : x
  2. Step 2: Convert to fraction form
    104,804.65/144,630.42 = 57,057.97/x
  3. Step 3: Cross multiply
    104,804.65x = 144,630.42 × 57,057.97
  4. Step 4: Simplify right side
    104,804.65x = 8,252,318,165.45
  5. Step 5: Solve for x
    x = 8,252,318,165.45/104,804.65
  6. Step 6: Final answer
    x = 78,740.00

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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.