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Finding the Fourth Proportional to 66,160.92, 91,239.48 and 43,459.86

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Solution

The fourth proportional to 66,160.92, 91,239.48 and 43,459.86 is: 59,933.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,160.92 : 91,239.48 = 43,459.86 : x
  2. Step 2: Convert to fraction form
    66,160.92/91,239.48 = 43,459.86/x
  3. Step 3: Cross multiply
    66,160.92x = 91,239.48 × 43,459.86
  4. Step 4: Simplify right side
    66,160.92x = 3,965,255,027.27
  5. Step 5: Solve for x
    x = 3,965,255,027.27/66,160.92
  6. Step 6: Final answer
    x = 59,933.49

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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.