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Finding the Fourth Proportional to 115,879.75, 173,897.54 and 40,999.60

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Solution

The fourth proportional to 115,879.75, 173,897.54 and 40,999.60 is: 61,526.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,879.75 : 173,897.54 = 40,999.60 : x
  2. Step 2: Convert to fraction form
    115,879.75/173,897.54 = 40,999.60/x
  3. Step 3: Cross multiply
    115,879.75x = 173,897.54 × 40,999.60
  4. Step 4: Simplify right side
    115,879.75x = 7,129,729,580.98
  5. Step 5: Solve for x
    x = 7,129,729,580.98/115,879.75
  6. Step 6: Final answer
    x = 61,526.97

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1.5x scale

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.