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Finding the Fourth Proportional to 156,716.30, 234,913.60 and 61,908.10

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Solution

The fourth proportional to 156,716.30, 234,913.60 and 61,908.10 is: 92,798.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,716.30 : 234,913.60 = 61,908.10 : x
  2. Step 2: Convert to fraction form
    156,716.30/234,913.60 = 61,908.10/x
  3. Step 3: Cross multiply
    156,716.30x = 234,913.60 × 61,908.10
  4. Step 4: Simplify right side
    156,716.30x = 14,543,054,640.16
  5. Step 5: Solve for x
    x = 14,543,054,640.16/156,716.30
  6. Step 6: Final answer
    x = 92,798.61

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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.