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Finding the Fourth Proportional to 252,907.94, 349,008.80 and 139,741.22

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Solution

The fourth proportional to 252,907.94, 349,008.80 and 139,741.22 is: 192,840.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,907.94 : 349,008.80 = 139,741.22 : x
  2. Step 2: Convert to fraction form
    252,907.94/349,008.80 = 139,741.22/x
  3. Step 3: Cross multiply
    252,907.94x = 349,008.80 × 139,741.22
  4. Step 4: Simplify right side
    252,907.94x = 48,770,915,502.74
  5. Step 5: Solve for x
    x = 48,770,915,502.74/252,907.94
  6. Step 6: Final answer
    x = 192,840.59

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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.