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Finding the Fourth Proportional to 171,342.68, 236,477.76 and 98,731.44

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Solution

The fourth proportional to 171,342.68, 236,477.76 and 98,731.44 is: 136,263.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,342.68 : 236,477.76 = 98,731.44 : x
  2. Step 2: Convert to fraction form
    171,342.68/236,477.76 = 98,731.44/x
  3. Step 3: Cross multiply
    171,342.68x = 236,477.76 × 98,731.44
  4. Step 4: Simplify right side
    171,342.68x = 23,347,789,772.77
  5. Step 5: Solve for x
    x = 23,347,789,772.77/171,342.68
  6. Step 6: Final answer
    x = 136,263.71

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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.