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Finding the Fourth Proportional to 69,400.80, 104,149.80 and 44,501.40

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Solution

The fourth proportional to 69,400.80, 104,149.80 and 44,501.40 is: 66,783.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,400.80 : 104,149.80 = 44,501.40 : x
  2. Step 2: Convert to fraction form
    69,400.80/104,149.80 = 44,501.40/x
  3. Step 3: Cross multiply
    69,400.80x = 104,149.80 × 44,501.40
  4. Step 4: Simplify right side
    69,400.80x = 4,634,811,909.72
  5. Step 5: Solve for x
    x = 4,634,811,909.72/69,400.80
  6. Step 6: Final answer
    x = 66,783.26

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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.