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Finding the Fourth Proportional to 76,805.85, 105,991.83 and 44,968.40

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Solution

The fourth proportional to 76,805.85, 105,991.83 and 44,968.40 is: 62,056.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,805.85 : 105,991.83 = 44,968.40 : x
  2. Step 2: Convert to fraction form
    76,805.85/105,991.83 = 44,968.40/x
  3. Step 3: Cross multiply
    76,805.85x = 105,991.83 × 44,968.40
  4. Step 4: Simplify right side
    76,805.85x = 4,766,282,478.21
  5. Step 5: Solve for x
    x = 4,766,282,478.21/76,805.85
  6. Step 6: Final answer
    x = 62,056.24

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1.5x scale

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.