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Finding the Fourth Proportional to 99,674,452.80, 149,539,672.80 and 48,558,139.20

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Solution

The fourth proportional to 99,674,452.80, 149,539,672.80 and 48,558,139.20 is: 72,850,846.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,674,452.80 : 149,539,672.80 = 48,558,139.20 : x
  2. Step 2: Convert to fraction form
    99,674,452.80/149,539,672.80 = 48,558,139.20/x
  3. Step 3: Cross multiply
    99,674,452.80x = 149,539,672.80 × 48,558,139.20
  4. Step 4: Simplify right side
    99,674,452.80x = 7,261,368,247,744,855
  5. Step 5: Solve for x
    x = 7,261,368,247,744,855/99,674,452.80
  6. Step 6: Final answer
    x = 72,850,846.37

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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.