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Finding the Fourth Proportional to 229,161.88, 316,238.63 and 127,181.41

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Solution

The fourth proportional to 229,161.88, 316,238.63 and 127,181.41 is: 175,507.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,161.88 : 316,238.63 = 127,181.41 : x
  2. Step 2: Convert to fraction form
    229,161.88/316,238.63 = 127,181.41/x
  3. Step 3: Cross multiply
    229,161.88x = 316,238.63 × 127,181.41
  4. Step 4: Simplify right side
    229,161.88x = 40,219,674,859.87
  5. Step 5: Solve for x
    x = 40,219,674,859.87/229,161.88
  6. Step 6: Final answer
    x = 175,507.71

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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.