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Finding the Fourth Proportional to 8,784,080.80, 13,176,121.20 and 3,104,879.20

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Solution

The fourth proportional to 8,784,080.80, 13,176,121.20 and 3,104,879.20 is: 4,657,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784,080.80 : 13,176,121.20 = 3,104,879.20 : x
  2. Step 2: Convert to fraction form
    8,784,080.80/13,176,121.20 = 3,104,879.20/x
  3. Step 3: Cross multiply
    8,784,080.80x = 13,176,121.20 × 3,104,879.20
  4. Step 4: Simplify right side
    8,784,080.80x = 40,910,264,650,559.04
  5. Step 5: Solve for x
    x = 40,910,264,650,559.04/8,784,080.80
  6. Step 6: Final answer
    x = 4,657,318.80

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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.