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Finding the Fourth Proportional to 156,662.72, 234,985.80 and 96,702.56

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Solution

The fourth proportional to 156,662.72, 234,985.80 and 96,702.56 is: 145,048.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,662.72 : 234,985.80 = 96,702.56 : x
  2. Step 2: Convert to fraction form
    156,662.72/234,985.80 = 96,702.56/x
  3. Step 3: Cross multiply
    156,662.72x = 234,985.80 × 96,702.56
  4. Step 4: Simplify right side
    156,662.72x = 22,723,728,423.65
  5. Step 5: Solve for x
    x = 22,723,728,423.65/156,662.72
  6. Step 6: Final answer
    x = 145,048.73

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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.