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Finding the Fourth Proportional to 172,752.35, 259,005.80 and 66,046.39

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Solution

The fourth proportional to 172,752.35, 259,005.80 and 66,046.39 is: 99,022.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,752.35 : 259,005.80 = 66,046.39 : x
  2. Step 2: Convert to fraction form
    172,752.35/259,005.80 = 66,046.39/x
  3. Step 3: Cross multiply
    172,752.35x = 259,005.80 × 66,046.39
  4. Step 4: Simplify right side
    172,752.35x = 17,106,397,596.66
  5. Step 5: Solve for x
    x = 17,106,397,596.66/172,752.35
  6. Step 6: Final answer
    x = 99,022.67

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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.