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Finding the Fourth Proportional to 156,405.96, 234,433.97 and 67,526.28

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Solution

The fourth proportional to 156,405.96, 234,433.97 and 67,526.28 is: 101,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,405.96 : 234,433.97 = 67,526.28 : x
  2. Step 2: Convert to fraction form
    156,405.96/234,433.97 = 67,526.28/x
  3. Step 3: Cross multiply
    156,405.96x = 234,433.97 × 67,526.28
  4. Step 4: Simplify right side
    156,405.96x = 15,830,453,899.73
  5. Step 5: Solve for x
    x = 15,830,453,899.73/156,405.96
  6. Step 6: Final answer
    x = 101,213.88

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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.