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Finding the Fourth Proportional to 172,953.32, 238,634.78 and 104,968.68

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Solution

The fourth proportional to 172,953.32, 238,634.78 and 104,968.68 is: 144,832.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,953.32 : 238,634.78 = 104,968.68 : x
  2. Step 2: Convert to fraction form
    172,953.32/238,634.78 = 104,968.68/x
  3. Step 3: Cross multiply
    172,953.32x = 238,634.78 × 104,968.68
  4. Step 4: Simplify right side
    172,953.32x = 25,049,177,858.69
  5. Step 5: Solve for x
    x = 25,049,177,858.69/172,953.32
  6. Step 6: Final answer
    x = 144,832.02

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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.