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Finding the Fourth Proportional to 166,602.42, 249,932.79 and 61,422.30

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Solution

The fourth proportional to 166,602.42, 249,932.79 and 61,422.30 is: 92,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,602.42 : 249,932.79 = 61,422.30 : x
  2. Step 2: Convert to fraction form
    166,602.42/249,932.79 = 61,422.30/x
  3. Step 3: Cross multiply
    166,602.42x = 249,932.79 × 61,422.30
  4. Step 4: Simplify right side
    166,602.42x = 15,351,446,807.22
  5. Step 5: Solve for x
    x = 15,351,446,807.22/166,602.42
  6. Step 6: Final answer
    x = 92,144.20

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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.