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Finding the Fourth Proportional to 166,347,991.80, 249,043,690.80 and 161,565,022.80

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Solution

The fourth proportional to 166,347,991.80, 249,043,690.80 and 161,565,022.80 is: 241,882,989.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,347,991.80 : 249,043,690.80 = 161,565,022.80 : x
  2. Step 2: Convert to fraction form
    166,347,991.80/249,043,690.80 = 161,565,022.80/x
  3. Step 3: Cross multiply
    166,347,991.80x = 249,043,690.80 × 161,565,022.80
  4. Step 4: Simplify right side
    166,347,991.80x = 40,236,749,582,298,152
  5. Step 5: Solve for x
    x = 40,236,749,582,298,152/166,347,991.80
  6. Step 6: Final answer
    x = 241,882,989.67

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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.