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Finding the Fourth Proportional to 125,234.79, 187,764.69 and 46,338.78

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Solution

The fourth proportional to 125,234.79, 187,764.69 and 46,338.78 is: 69,475.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,234.79 : 187,764.69 = 46,338.78 : x
  2. Step 2: Convert to fraction form
    125,234.79/187,764.69 = 46,338.78/x
  3. Step 3: Cross multiply
    125,234.79x = 187,764.69 × 46,338.78
  4. Step 4: Simplify right side
    125,234.79x = 8,700,786,661.68
  5. Step 5: Solve for x
    x = 8,700,786,661.68/125,234.79
  6. Step 6: Final answer
    x = 69,475.80

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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.