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Finding the Fourth Proportional to 126,458.84, 174,516.72 and 69,873.86

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Solution

The fourth proportional to 126,458.84, 174,516.72 and 69,873.86 is: 96,427.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,458.84 : 174,516.72 = 69,873.86 : x
  2. Step 2: Convert to fraction form
    126,458.84/174,516.72 = 69,873.86/x
  3. Step 3: Cross multiply
    126,458.84x = 174,516.72 × 69,873.86
  4. Step 4: Simplify right side
    126,458.84x = 12,194,156,860.94
  5. Step 5: Solve for x
    x = 12,194,156,860.94/126,458.84
  6. Step 6: Final answer
    x = 96,427.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.