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Finding the Fourth Proportional to 171,330.68, 236,461.20 and 98,719.44

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Solution

The fourth proportional to 171,330.68, 236,461.20 and 98,719.44 is: 136,247.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,330.68 : 236,461.20 = 98,719.44 : x
  2. Step 2: Convert to fraction form
    171,330.68/236,461.20 = 98,719.44/x
  3. Step 3: Cross multiply
    171,330.68x = 236,461.20 × 98,719.44
  4. Step 4: Simplify right side
    171,330.68x = 23,343,317,245.73
  5. Step 5: Solve for x
    x = 23,343,317,245.73/171,330.68
  6. Step 6: Final answer
    x = 136,247.15

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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.