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Finding the Fourth Proportional to 144,679.98, 199,528.26 and 93,639.48

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Solution

The fourth proportional to 144,679.98, 199,528.26 and 93,639.48 is: 129,138.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,679.98 : 199,528.26 = 93,639.48 : x
  2. Step 2: Convert to fraction form
    144,679.98/199,528.26 = 93,639.48/x
  3. Step 3: Cross multiply
    144,679.98x = 199,528.26 × 93,639.48
  4. Step 4: Simplify right side
    144,679.98x = 18,683,722,511.70
  5. Step 5: Solve for x
    x = 18,683,722,511.70/144,679.98
  6. Step 6: Final answer
    x = 129,138.27

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1.5x scale

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.