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Finding the Fourth Proportional to 161,751.88, 242,624.94 and 68,258.44

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Solution

The fourth proportional to 161,751.88, 242,624.94 and 68,258.44 is: 102,386.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,751.88 : 242,624.94 = 68,258.44 : x
  2. Step 2: Convert to fraction form
    161,751.88/242,624.94 = 68,258.44/x
  3. Step 3: Cross multiply
    161,751.88x = 242,624.94 × 68,258.44
  4. Step 4: Simplify right side
    161,751.88x = 16,561,199,909.49
  5. Step 5: Solve for x
    x = 16,561,199,909.49/161,751.88
  6. Step 6: Final answer
    x = 102,386.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.