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Finding the Fourth Proportional to 172,953.93, 238,682.34 and 100,351.34

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Solution

The fourth proportional to 172,953.93, 238,682.34 and 100,351.34 is: 138,488.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,953.93 : 238,682.34 = 100,351.34 : x
  2. Step 2: Convert to fraction form
    172,953.93/238,682.34 = 100,351.34/x
  3. Step 3: Cross multiply
    172,953.93x = 238,682.34 × 100,351.34
  4. Step 4: Simplify right side
    172,953.93x = 23,952,093,250.04
  5. Step 5: Solve for x
    x = 23,952,093,250.04/172,953.93
  6. Step 6: Final answer
    x = 138,488.28

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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.