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Finding the Fourth Proportional to 125,898.24, 188,759.88 and 55,739.28

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Solution

The fourth proportional to 125,898.24, 188,759.88 and 55,739.28 is: 83,570.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,898.24 : 188,759.88 = 55,739.28 : x
  2. Step 2: Convert to fraction form
    125,898.24/188,759.88 = 55,739.28/x
  3. Step 3: Cross multiply
    125,898.24x = 188,759.88 × 55,739.28
  4. Step 4: Simplify right side
    125,898.24x = 10,521,339,804.09
  5. Step 5: Solve for x
    x = 10,521,339,804.09/125,898.24
  6. Step 6: Final answer
    x = 83,570.19

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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.