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Finding the Fourth Proportional to 172,003.98, 237,366.99 and 100,370.16

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Solution

The fourth proportional to 172,003.98, 237,366.99 and 100,370.16 is: 138,511.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,003.98 : 237,366.99 = 100,370.16 : x
  2. Step 2: Convert to fraction form
    172,003.98/237,366.99 = 100,370.16/x
  3. Step 3: Cross multiply
    172,003.98x = 237,366.99 × 100,370.16
  4. Step 4: Simplify right side
    172,003.98x = 23,824,562,765.02
  5. Step 5: Solve for x
    x = 23,824,562,765.02/172,003.98
  6. Step 6: Final answer
    x = 138,511.69

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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.