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Finding the Fourth Proportional to 79,409.76, 118,958.92 and 46,059.76

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Solution

The fourth proportional to 79,409.76, 118,958.92 and 46,059.76 is: 68,999.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,409.76 : 118,958.92 = 46,059.76 : x
  2. Step 2: Convert to fraction form
    79,409.76/118,958.92 = 46,059.76/x
  3. Step 3: Cross multiply
    79,409.76x = 118,958.92 × 46,059.76
  4. Step 4: Simplify right side
    79,409.76x = 5,479,219,305.06
  5. Step 5: Solve for x
    x = 5,479,219,305.06/79,409.76
  6. Step 6: Final answer
    x = 68,999.32

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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.