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Finding the Fourth Proportional to 79,401.76, 118,946.92 and 46,051.77

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Solution

The fourth proportional to 79,401.76, 118,946.92 and 46,051.77 is: 68,987.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,401.76 : 118,946.92 = 46,051.77 : x
  2. Step 2: Convert to fraction form
    79,401.76/118,946.92 = 46,051.77/x
  3. Step 3: Cross multiply
    79,401.76x = 118,946.92 × 46,051.77
  4. Step 4: Simplify right side
    79,401.76x = 5,477,716,202.05
  5. Step 5: Solve for x
    x = 5,477,716,202.05/79,401.76
  6. Step 6: Final answer
    x = 68,987.34

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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.