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Finding the Fourth Proportional to 166,528, 229,808.82 and 91,076.68

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Solution

The fourth proportional to 166,528, 229,808.82 and 91,076.68 is: 125,685.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,528 : 229,808.82 = 91,076.68 : x
  2. Step 2: Convert to fraction form
    166,528/229,808.82 = 91,076.68/x
  3. Step 3: Cross multiply
    166,528x = 229,808.82 × 91,076.68
  4. Step 4: Simplify right side
    166,528x = 20,930,224,360.32
  5. Step 5: Solve for x
    x = 20,930,224,360.32/166,528
  6. Step 6: Final answer
    x = 125,685.92

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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.