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Finding the Fourth Proportional to 122,913.72, 169,668.54 and 96,064.87

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Solution

The fourth proportional to 122,913.72, 169,668.54 and 96,064.87 is: 132,606.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,913.72 : 169,668.54 = 96,064.87 : x
  2. Step 2: Convert to fraction form
    122,913.72/169,668.54 = 96,064.87/x
  3. Step 3: Cross multiply
    122,913.72x = 169,668.54 × 96,064.87
  4. Step 4: Simplify right side
    122,913.72x = 16,299,186,238.19
  5. Step 5: Solve for x
    x = 16,299,186,238.19/122,913.72
  6. Step 6: Final answer
    x = 132,606.73

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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.