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Finding the Fourth Proportional to 79,400.76, 118,945.43 and 46,050.77

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Solution

The fourth proportional to 79,400.76, 118,945.43 and 46,050.77 is: 68,985.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,400.76 : 118,945.43 = 46,050.77 : x
  2. Step 2: Convert to fraction form
    79,400.76/118,945.43 = 46,050.77/x
  3. Step 3: Cross multiply
    79,400.76x = 118,945.43 × 46,050.77
  4. Step 4: Simplify right side
    79,400.76x = 5,477,527,814.50
  5. Step 5: Solve for x
    x = 5,477,527,814.50/79,400.76
  6. Step 6: Final answer
    x = 68,985.84

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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.