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Finding the Fourth Proportional to 179,998.56, 269,920.32 and 61,681.68

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Solution

The fourth proportional to 179,998.56, 269,920.32 and 61,681.68 is: 92,495.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,998.56 : 269,920.32 = 61,681.68 : x
  2. Step 2: Convert to fraction form
    179,998.56/269,920.32 = 61,681.68/x
  3. Step 3: Cross multiply
    179,998.56x = 269,920.32 × 61,681.68
  4. Step 4: Simplify right side
    179,998.56x = 16,649,138,803.74
  5. Step 5: Solve for x
    x = 16,649,138,803.74/179,998.56
  6. Step 6: Final answer
    x = 92,495.96

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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.