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Finding the Fourth Proportional to 336,664.96, 505,045.44 and 156,663.68

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Solution

The fourth proportional to 336,664.96, 505,045.44 and 156,663.68 is: 235,017.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,664.96 : 505,045.44 = 156,663.68 : x
  2. Step 2: Convert to fraction form
    336,664.96/505,045.44 = 156,663.68/x
  3. Step 3: Cross multiply
    336,664.96x = 505,045.44 × 156,663.68
  4. Step 4: Simplify right side
    336,664.96x = 79,122,277,197.62
  5. Step 5: Solve for x
    x = 79,122,277,197.62/336,664.96
  6. Step 6: Final answer
    x = 235,017.86

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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.