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Finding the Fourth Proportional to 163,254.84, 225,274.32 and 91,642.74

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Solution

The fourth proportional to 163,254.84, 225,274.32 and 91,642.74 is: 126,457.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,254.84 : 225,274.32 = 91,642.74 : x
  2. Step 2: Convert to fraction form
    163,254.84/225,274.32 = 91,642.74/x
  3. Step 3: Cross multiply
    163,254.84x = 225,274.32 × 91,642.74
  4. Step 4: Simplify right side
    163,254.84x = 20,644,755,936.44
  5. Step 5: Solve for x
    x = 20,644,755,936.44/163,254.84
  6. Step 6: Final answer
    x = 126,457.24

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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.