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Finding the Fourth Proportional to 162,878.88, 224,786.64 and 91,257.84

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Solution

The fourth proportional to 162,878.88, 224,786.64 and 91,257.84 is: 125,943.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,878.88 : 224,786.64 = 91,257.84 : x
  2. Step 2: Convert to fraction form
    162,878.88/224,786.64 = 91,257.84/x
  3. Step 3: Cross multiply
    162,878.88x = 224,786.64 × 91,257.84
  4. Step 4: Simplify right side
    162,878.88x = 20,513,543,227.26
  5. Step 5: Solve for x
    x = 20,513,543,227.26/162,878.88
  6. Step 6: Final answer
    x = 125,943.54

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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.