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Finding the Fourth Proportional to 116,732.70, 174,818.44 and 66,661.20

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Solution

The fourth proportional to 116,732.70, 174,818.44 and 66,661.20 is: 99,831.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,732.70 : 174,818.44 = 66,661.20 : x
  2. Step 2: Convert to fraction form
    116,732.70/174,818.44 = 66,661.20/x
  3. Step 3: Cross multiply
    116,732.70x = 174,818.44 × 66,661.20
  4. Step 4: Simplify right side
    116,732.70x = 11,653,606,992.53
  5. Step 5: Solve for x
    x = 11,653,606,992.53/116,732.70
  6. Step 6: Final answer
    x = 99,831.56

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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.