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Finding the Fourth Proportional to 125,923.79, 188,840.33 and 41,668.40

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Solution

The fourth proportional to 125,923.79, 188,840.33 and 41,668.40 is: 62,487.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,923.79 : 188,840.33 = 41,668.40 : x
  2. Step 2: Convert to fraction form
    125,923.79/188,840.33 = 41,668.40/x
  3. Step 3: Cross multiply
    125,923.79x = 188,840.33 × 41,668.40
  4. Step 4: Simplify right side
    125,923.79x = 7,868,674,826.59
  5. Step 5: Solve for x
    x = 7,868,674,826.59/125,923.79
  6. Step 6: Final answer
    x = 62,487.59

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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.