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Finding the Fourth Proportional to 336,774.49, 505,160.52 and 87,456.49

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Solution

The fourth proportional to 336,774.49, 505,160.52 and 87,456.49 is: 131,184.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,774.49 : 505,160.52 = 87,456.49 : x
  2. Step 2: Convert to fraction form
    336,774.49/505,160.52 = 87,456.49/x
  3. Step 3: Cross multiply
    336,774.49x = 505,160.52 × 87,456.49
  4. Step 4: Simplify right side
    336,774.49x = 44,179,565,965.77
  5. Step 5: Solve for x
    x = 44,179,565,965.77/336,774.49
  6. Step 6: Final answer
    x = 131,184.42

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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.