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Finding the Fourth Proportional to 156,212.65, 234,270.52 and 56,359.87

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Solution

The fourth proportional to 156,212.65, 234,270.52 and 56,359.87 is: 84,522.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,212.65 : 234,270.52 = 56,359.87 : x
  2. Step 2: Convert to fraction form
    156,212.65/234,270.52 = 56,359.87/x
  3. Step 3: Cross multiply
    156,212.65x = 234,270.52 × 56,359.87
  4. Step 4: Simplify right side
    156,212.65x = 13,203,456,052.03
  5. Step 5: Solve for x
    x = 13,203,456,052.03/156,212.65
  6. Step 6: Final answer
    x = 84,522.32

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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.