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Finding the Fourth Proportional to 188,459,643.80, 282,479,513.70 and 73,405,947.80

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Solution

The fourth proportional to 188,459,643.80, 282,479,513.70 and 73,405,947.80 is: 110,027,144.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,459,643.80 : 282,479,513.70 = 73,405,947.80 : x
  2. Step 2: Convert to fraction form
    188,459,643.80/282,479,513.70 = 73,405,947.80/x
  3. Step 3: Cross multiply
    188,459,643.80x = 282,479,513.70 × 73,405,947.80
  4. Step 4: Simplify right side
    188,459,643.80x = 20,735,676,437,231,584
  5. Step 5: Solve for x
    x = 20,735,676,437,231,584/188,459,643.80
  6. Step 6: Final answer
    x = 110,027,144.37

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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.