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Finding the Fourth Proportional to 156,627, 234,629.46 and 77,499.72

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Solution

The fourth proportional to 156,627, 234,629.46 and 77,499.72 is: 116,095.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,627 : 234,629.46 = 77,499.72 : x
  2. Step 2: Convert to fraction form
    156,627/234,629.46 = 77,499.72/x
  3. Step 3: Cross multiply
    156,627x = 234,629.46 × 77,499.72
  4. Step 4: Simplify right side
    156,627x = 18,183,717,453.75
  5. Step 5: Solve for x
    x = 18,183,717,453.75/156,627
  6. Step 6: Final answer
    x = 116,095.68

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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.