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Finding the Fourth Proportional to 86,200.40, 118,955.77 and 48,473.84

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Solution

The fourth proportional to 86,200.40, 118,955.77 and 48,473.84 is: 66,893.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,200.40 : 118,955.77 = 48,473.84 : x
  2. Step 2: Convert to fraction form
    86,200.40/118,955.77 = 48,473.84/x
  3. Step 3: Cross multiply
    86,200.40x = 118,955.77 × 48,473.84
  4. Step 4: Simplify right side
    86,200.40x = 5,766,242,246.09
  5. Step 5: Solve for x
    x = 5,766,242,246.09/86,200.40
  6. Step 6: Final answer
    x = 66,893.46

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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.