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Finding the Fourth Proportional to 294,531.90, 441,855.45 and 126,051.90

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Solution

The fourth proportional to 294,531.90, 441,855.45 and 126,051.90 is: 189,102.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,531.90 : 441,855.45 = 126,051.90 : x
  2. Step 2: Convert to fraction form
    294,531.90/441,855.45 = 126,051.90/x
  3. Step 3: Cross multiply
    294,531.90x = 441,855.45 × 126,051.90
  4. Step 4: Simplify right side
    294,531.90x = 55,696,718,997.86
  5. Step 5: Solve for x
    x = 55,696,718,997.86/294,531.90
  6. Step 6: Final answer
    x = 189,102.50

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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.