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Finding the Fourth Proportional to 86,297.55, 129,459.11 and 44,201.45

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Solution

The fourth proportional to 86,297.55, 129,459.11 and 44,201.45 is: 66,308.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,297.55 : 129,459.11 = 44,201.45 : x
  2. Step 2: Convert to fraction form
    86,297.55/129,459.11 = 44,201.45/x
  3. Step 3: Cross multiply
    86,297.55x = 129,459.11 × 44,201.45
  4. Step 4: Simplify right side
    86,297.55x = 5,722,279,509.41
  5. Step 5: Solve for x
    x = 5,722,279,509.41/86,297.55
  6. Step 6: Final answer
    x = 66,308.71

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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.