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Finding the Fourth Proportional to 70,550,553.80, 105,825,830.70 and 50,245,862.60

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Solution

The fourth proportional to 70,550,553.80, 105,825,830.70 and 50,245,862.60 is: 75,368,793.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,550,553.80 : 105,825,830.70 = 50,245,862.60 : x
  2. Step 2: Convert to fraction form
    70,550,553.80/105,825,830.70 = 50,245,862.60/x
  3. Step 3: Cross multiply
    70,550,553.80x = 105,825,830.70 × 50,245,862.60
  4. Step 4: Simplify right side
    70,550,553.80x = 5,317,310,148,883,062
  5. Step 5: Solve for x
    x = 5,317,310,148,883,062/70,550,553.80
  6. Step 6: Final answer
    x = 75,368,793.90

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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.