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Finding the Fourth Proportional to 166,076.20, 249,114.30 and 112,932.10

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Solution

The fourth proportional to 166,076.20, 249,114.30 and 112,932.10 is: 169,398.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,076.20 : 249,114.30 = 112,932.10 : x
  2. Step 2: Convert to fraction form
    166,076.20/249,114.30 = 112,932.10/x
  3. Step 3: Cross multiply
    166,076.20x = 249,114.30 × 112,932.10
  4. Step 4: Simplify right side
    166,076.20x = 28,133,001,039.03
  5. Step 5: Solve for x
    x = 28,133,001,039.03/166,076.20
  6. Step 6: Final answer
    x = 169,398.15

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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.