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Finding the Fourth Proportional to 173,021.60, 259,726.80 and 133,752.80

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Solution

The fourth proportional to 173,021.60, 259,726.80 and 133,752.80 is: 200,779.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,021.60 : 259,726.80 = 133,752.80 : x
  2. Step 2: Convert to fraction form
    173,021.60/259,726.80 = 133,752.80/x
  3. Step 3: Cross multiply
    173,021.60x = 259,726.80 × 133,752.80
  4. Step 4: Simplify right side
    173,021.60x = 34,739,186,735.04
  5. Step 5: Solve for x
    x = 34,739,186,735.04/173,021.60
  6. Step 6: Final answer
    x = 200,779.48

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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.