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Finding the Fourth Proportional to 70,057,584.80, 105,096,405.79 and 21,539,511.84

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Solution

The fourth proportional to 70,057,584.80, 105,096,405.79 and 21,539,511.84 is: 32,312,351.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,057,584.80 : 105,096,405.79 = 21,539,511.84 : x
  2. Step 2: Convert to fraction form
    70,057,584.80/105,096,405.79 = 21,539,511.84/x
  3. Step 3: Cross multiply
    70,057,584.80x = 105,096,405.79 × 21,539,511.84
  4. Step 4: Simplify right side
    70,057,584.80x = 2,263,725,276,855,149.50
  5. Step 5: Solve for x
    x = 2,263,725,276,855,149.50/70,057,584.80
  6. Step 6: Final answer
    x = 32,312,351.09

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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.