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Finding the Fourth Proportional to 357,039,014.80, 535,306,579.80 and 163,043,366.80

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Solution

The fourth proportional to 357,039,014.80, 535,306,579.80 and 163,043,366.80 is: 244,449,999.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,039,014.80 : 535,306,579.80 = 163,043,366.80 : x
  2. Step 2: Convert to fraction form
    357,039,014.80/535,306,579.80 = 163,043,366.80/x
  3. Step 3: Cross multiply
    357,039,014.80x = 535,306,579.80 × 163,043,366.80
  4. Step 4: Simplify right side
    357,039,014.80x = 87,278,187,040,784,880
  5. Step 5: Solve for x
    x = 87,278,187,040,784,880/357,039,014.80
  6. Step 6: Final answer
    x = 244,449,999.64

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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.