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Finding the Fourth Proportional to 251,804.50, 347,515.31 and 188,031.58

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Solution

The fourth proportional to 251,804.50, 347,515.31 and 188,031.58 is: 259,502.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,804.50 : 347,515.31 = 188,031.58 : x
  2. Step 2: Convert to fraction form
    251,804.50/347,515.31 = 188,031.58/x
  3. Step 3: Cross multiply
    251,804.50x = 347,515.31 × 188,031.58
  4. Step 4: Simplify right side
    251,804.50x = 65,343,852,813.49
  5. Step 5: Solve for x
    x = 65,343,852,813.49/251,804.50
  6. Step 6: Final answer
    x = 259,502.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.