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Finding the Fourth Proportional to 86,007.56, 118,683.88 and 48,274.52

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Solution

The fourth proportional to 86,007.56, 118,683.88 and 48,274.52 is: 66,615.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,007.56 : 118,683.88 = 48,274.52 : x
  2. Step 2: Convert to fraction form
    86,007.56/118,683.88 = 48,274.52/x
  3. Step 3: Cross multiply
    86,007.56x = 118,683.88 × 48,274.52
  4. Step 4: Simplify right side
    86,007.56x = 5,729,407,338.74
  5. Step 5: Solve for x
    x = 5,729,407,338.74/86,007.56
  6. Step 6: Final answer
    x = 66,615.16

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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.