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Finding the Fourth Proportional to 76,057.94, 104,968.76 and 45,858.71

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Solution

The fourth proportional to 76,057.94, 104,968.76 and 45,858.71 is: 63,290.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,057.94 : 104,968.76 = 45,858.71 : x
  2. Step 2: Convert to fraction form
    76,057.94/104,968.76 = 45,858.71/x
  3. Step 3: Cross multiply
    76,057.94x = 104,968.76 × 45,858.71
  4. Step 4: Simplify right side
    76,057.94x = 4,813,731,169.76
  5. Step 5: Solve for x
    x = 4,813,731,169.76/76,057.94
  6. Step 6: Final answer
    x = 63,290.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.