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Finding the Fourth Proportional to 86,033.25, 118,731.15 and 48,307.50

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Solution

The fourth proportional to 86,033.25, 118,731.15 and 48,307.50 is: 66,667.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,033.25 : 118,731.15 = 48,307.50 : x
  2. Step 2: Convert to fraction form
    86,033.25/118,731.15 = 48,307.50/x
  3. Step 3: Cross multiply
    86,033.25x = 118,731.15 × 48,307.50
  4. Step 4: Simplify right side
    86,033.25x = 5,735,605,028.63
  5. Step 5: Solve for x
    x = 5,735,605,028.63/86,033.25
  6. Step 6: Final answer
    x = 66,667.31

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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.