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Finding the Fourth Proportional to 172,995.22, 238,727.99 and 101,422.91

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Solution

The fourth proportional to 172,995.22, 238,727.99 and 101,422.91 is: 139,960.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,995.22 : 238,727.99 = 101,422.91 : x
  2. Step 2: Convert to fraction form
    172,995.22/238,727.99 = 101,422.91/x
  3. Step 3: Cross multiply
    172,995.22x = 238,727.99 × 101,422.91
  4. Step 4: Simplify right side
    172,995.22x = 24,212,488,294.63
  5. Step 5: Solve for x
    x = 24,212,488,294.63/172,995.22
  6. Step 6: Final answer
    x = 139,960.45

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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.