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Finding the Fourth Proportional to 173,196.80, 259,795.20 and 162,828.80

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Solution

The fourth proportional to 173,196.80, 259,795.20 and 162,828.80 is: 244,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,196.80 : 259,795.20 = 162,828.80 : x
  2. Step 2: Convert to fraction form
    173,196.80/259,795.20 = 162,828.80/x
  3. Step 3: Cross multiply
    173,196.80x = 259,795.20 × 162,828.80
  4. Step 4: Simplify right side
    173,196.80x = 42,302,140,661.76
  5. Step 5: Solve for x
    x = 42,302,140,661.76/173,196.80
  6. Step 6: Final answer
    x = 244,243.20

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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.