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Finding the Fourth Proportional to 144,979,594.80, 217,469,392.20 and 80,482,340.40

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Solution

The fourth proportional to 144,979,594.80, 217,469,392.20 and 80,482,340.40 is: 120,723,510.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,979,594.80 : 217,469,392.20 = 80,482,340.40 : x
  2. Step 2: Convert to fraction form
    144,979,594.80/217,469,392.20 = 80,482,340.40/x
  3. Step 3: Cross multiply
    144,979,594.80x = 217,469,392.20 × 80,482,340.40
  4. Step 4: Simplify right side
    144,979,594.80x = 17,502,445,649,621,506
  5. Step 5: Solve for x
    x = 17,502,445,649,621,506/144,979,594.80
  6. Step 6: Final answer
    x = 120,723,510.60

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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.