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Finding the Fourth Proportional to 76,734.48, 105,842.88 and 48,004.29

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Solution

The fourth proportional to 76,734.48, 105,842.88 and 48,004.29 is: 66,214.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,734.48 : 105,842.88 = 48,004.29 : x
  2. Step 2: Convert to fraction form
    76,734.48/105,842.88 = 48,004.29/x
  3. Step 3: Cross multiply
    76,734.48x = 105,842.88 × 48,004.29
  4. Step 4: Simplify right side
    76,734.48x = 5,080,912,305.96
  5. Step 5: Solve for x
    x = 5,080,912,305.96/76,734.48
  6. Step 6: Final answer
    x = 66,214.20

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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.