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Finding the Fourth Proportional to 166,379.79, 249,569.48 and 40,019.97

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Solution

The fourth proportional to 166,379.79, 249,569.48 and 40,019.97 is: 60,029.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,379.79 : 249,569.48 = 40,019.97 : x
  2. Step 2: Convert to fraction form
    166,379.79/249,569.48 = 40,019.97/x
  3. Step 3: Cross multiply
    166,379.79x = 249,569.48 × 40,019.97
  4. Step 4: Simplify right side
    166,379.79x = 9,987,762,902.42
  5. Step 5: Solve for x
    x = 9,987,762,902.42/166,379.79
  6. Step 6: Final answer
    x = 60,029.90

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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.