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Finding the Fourth Proportional to 125,805.34, 188,726.63 and 41,574.40

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Solution

The fourth proportional to 125,805.34, 188,726.63 and 41,574.40 is: 62,367.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,805.34 : 188,726.63 = 41,574.40 : x
  2. Step 2: Convert to fraction form
    125,805.34/188,726.63 = 41,574.40/x
  3. Step 3: Cross multiply
    125,805.34x = 188,726.63 × 41,574.40
  4. Step 4: Simplify right side
    125,805.34x = 7,846,196,406.27
  5. Step 5: Solve for x
    x = 7,846,196,406.27/125,805.34
  6. Step 6: Final answer
    x = 62,367.75

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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.