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Finding the Fourth Proportional to 48,591,710.80, 72,887,640.88 and 19,458,669.20

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Solution

The fourth proportional to 48,591,710.80, 72,887,640.88 and 19,458,669.20 is: 29,188,033.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,591,710.80 : 72,887,640.88 = 19,458,669.20 : x
  2. Step 2: Convert to fraction form
    48,591,710.80/72,887,640.88 = 19,458,669.20/x
  3. Step 3: Cross multiply
    48,591,710.80x = 72,887,640.88 × 19,458,669.20
  4. Step 4: Simplify right side
    48,591,710.80x = 1,418,296,492,652,316.75
  5. Step 5: Solve for x
    x = 1,418,296,492,652,316.75/48,591,710.80
  6. Step 6: Final answer
    x = 29,188,033.71

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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.