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Finding the Fourth Proportional to 85,967.01, 118,629.15 and 47,724.32

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Solution

The fourth proportional to 85,967.01, 118,629.15 and 47,724.32 is: 65,856.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,967.01 : 118,629.15 = 47,724.32 : x
  2. Step 2: Convert to fraction form
    85,967.01/118,629.15 = 47,724.32/x
  3. Step 3: Cross multiply
    85,967.01x = 118,629.15 × 47,724.32
  4. Step 4: Simplify right side
    85,967.01x = 5,661,495,633.53
  5. Step 5: Solve for x
    x = 5,661,495,633.53/85,967.01
  6. Step 6: Final answer
    x = 65,856.61

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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.