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Finding the Fourth Proportional to 156,207.98, 234,314.88 and 56,375.66

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Solution

The fourth proportional to 156,207.98, 234,314.88 and 56,375.66 is: 84,564.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,207.98 : 234,314.88 = 56,375.66 : x
  2. Step 2: Convert to fraction form
    156,207.98/234,314.88 = 56,375.66/x
  3. Step 3: Cross multiply
    156,207.98x = 234,314.88 × 56,375.66
  4. Step 4: Simplify right side
    156,207.98x = 13,209,656,007.82
  5. Step 5: Solve for x
    x = 13,209,656,007.82/156,207.98
  6. Step 6: Final answer
    x = 84,564.54

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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.