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Finding the Fourth Proportional to 166,423.80, 249,489.90 and 99,793.20

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Solution

The fourth proportional to 166,423.80, 249,489.90 and 99,793.20 is: 149,602.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,423.80 : 249,489.90 = 99,793.20 : x
  2. Step 2: Convert to fraction form
    166,423.80/249,489.90 = 99,793.20/x
  3. Step 3: Cross multiply
    166,423.80x = 249,489.90 × 99,793.20
  4. Step 4: Simplify right side
    166,423.80x = 24,897,395,488.68
  5. Step 5: Solve for x
    x = 24,897,395,488.68/166,423.80
  6. Step 6: Final answer
    x = 149,602.37

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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.