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Finding the Fourth Proportional to 96,999.99, 133,839.84 and 56,705.86

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Solution

The fourth proportional to 96,999.99, 133,839.84 and 56,705.86 is: 78,242.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,999.99 : 133,839.84 = 56,705.86 : x
  2. Step 2: Convert to fraction form
    96,999.99/133,839.84 = 56,705.86/x
  3. Step 3: Cross multiply
    96,999.99x = 133,839.84 × 56,705.86
  4. Step 4: Simplify right side
    96,999.99x = 7,589,503,229.46
  5. Step 5: Solve for x
    x = 7,589,503,229.46/96,999.99
  6. Step 6: Final answer
    x = 78,242.31

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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.