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Finding the Fourth Proportional to 85,837, 128,605.36 and 59,558.44

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Solution

The fourth proportional to 85,837, 128,605.36 and 59,558.44 is: 89,233.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,837 : 128,605.36 = 59,558.44 : x
  2. Step 2: Convert to fraction form
    85,837/128,605.36 = 59,558.44/x
  3. Step 3: Cross multiply
    85,837x = 128,605.36 × 59,558.44
  4. Step 4: Simplify right side
    85,837x = 7,659,534,617.24
  5. Step 5: Solve for x
    x = 7,659,534,617.24/85,837
  6. Step 6: Final answer
    x = 89,233.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.