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Finding the Fourth Proportional to 72,546.96, 100,156.46 and 48,341.54

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Solution

The fourth proportional to 72,546.96, 100,156.46 and 48,341.54 is: 66,739.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,546.96 : 100,156.46 = 48,341.54 : x
  2. Step 2: Convert to fraction form
    72,546.96/100,156.46 = 48,341.54/x
  3. Step 3: Cross multiply
    72,546.96x = 100,156.46 × 48,341.54
  4. Step 4: Simplify right side
    72,546.96x = 4,841,717,517.35
  5. Step 5: Solve for x
    x = 4,841,717,517.35/72,546.96
  6. Step 6: Final answer
    x = 66,739.08

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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.