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Finding the Fourth Proportional to 71,295.87, 98,283.52 and 54,270.46

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Solution

The fourth proportional to 71,295.87, 98,283.52 and 54,270.46 is: 74,813.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,295.87 : 98,283.52 = 54,270.46 : x
  2. Step 2: Convert to fraction form
    71,295.87/98,283.52 = 54,270.46/x
  3. Step 3: Cross multiply
    71,295.87x = 98,283.52 × 54,270.46
  4. Step 4: Simplify right side
    71,295.87x = 5,333,891,840.82
  5. Step 5: Solve for x
    x = 5,333,891,840.82/71,295.87
  6. Step 6: Final answer
    x = 74,813.48

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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.