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Finding the Fourth Proportional to 251,334.90, 377,111.70 and 126,675.90

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Solution

The fourth proportional to 251,334.90, 377,111.70 and 126,675.90 is: 190,068.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,334.90 : 377,111.70 = 126,675.90 : x
  2. Step 2: Convert to fraction form
    251,334.90/377,111.70 = 126,675.90/x
  3. Step 3: Cross multiply
    251,334.90x = 377,111.70 × 126,675.90
  4. Step 4: Simplify right side
    251,334.90x = 47,770,963,998.03
  5. Step 5: Solve for x
    x = 47,770,963,998.03/251,334.90
  6. Step 6: Final answer
    x = 190,068.96

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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.