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Finding the Fourth Proportional to 166,231.62, 249,311.79 and 47,880.90

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Solution

The fourth proportional to 166,231.62, 249,311.79 and 47,880.90 is: 71,811.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,231.62 : 249,311.79 = 47,880.90 : x
  2. Step 2: Convert to fraction form
    166,231.62/249,311.79 = 47,880.90/x
  3. Step 3: Cross multiply
    166,231.62x = 249,311.79 × 47,880.90
  4. Step 4: Simplify right side
    166,231.62x = 11,937,272,885.81
  5. Step 5: Solve for x
    x = 11,937,272,885.81/166,231.62
  6. Step 6: Final answer
    x = 71,811.08

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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.