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Finding the Fourth Proportional to 622,159.34, 933,238.46 and 172,879.98

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Solution

The fourth proportional to 622,159.34, 933,238.46 and 172,879.98 is: 259,319.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,159.34 : 933,238.46 = 172,879.98 : x
  2. Step 2: Convert to fraction form
    622,159.34/933,238.46 = 172,879.98/x
  3. Step 3: Cross multiply
    622,159.34x = 933,238.46 × 172,879.98
  4. Step 4: Simplify right side
    622,159.34x = 161,338,245,435.63
  5. Step 5: Solve for x
    x = 161,338,245,435.63/622,159.34
  6. Step 6: Final answer
    x = 259,319.82

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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.