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Finding the Fourth Proportional to 133,037,797.70, 199,556,696.55 and 72,571,621.70

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Solution

The fourth proportional to 133,037,797.70, 199,556,696.55 and 72,571,621.70 is: 108,857,432.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,037,797.70 : 199,556,696.55 = 72,571,621.70 : x
  2. Step 2: Convert to fraction form
    133,037,797.70/199,556,696.55 = 72,571,621.70/x
  3. Step 3: Cross multiply
    133,037,797.70x = 199,556,696.55 × 72,571,621.70
  4. Step 4: Simplify right side
    133,037,797.70x = 14,482,153,089,728,296
  5. Step 5: Solve for x
    x = 14,482,153,089,728,296/133,037,797.70
  6. Step 6: Final answer
    x = 108,857,432.55

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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.