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Finding the Fourth Proportional to 78,014.96, 107,652.84 and 44,020.40

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Solution

The fourth proportional to 78,014.96, 107,652.84 and 44,020.40 is: 60,743.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,014.96 : 107,652.84 = 44,020.40 : x
  2. Step 2: Convert to fraction form
    78,014.96/107,652.84 = 44,020.40/x
  3. Step 3: Cross multiply
    78,014.96x = 107,652.84 × 44,020.40
  4. Step 4: Simplify right side
    78,014.96x = 4,738,921,077.94
  5. Step 5: Solve for x
    x = 4,738,921,077.94/78,014.96
  6. Step 6: Final answer
    x = 60,743.75

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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.