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Finding the Fourth Proportional to 166,737.99, 249,927.66 and 72,012.90

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Solution

The fourth proportional to 166,737.99, 249,927.66 and 72,012.90 is: 107,941.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,737.99 : 249,927.66 = 72,012.90 : x
  2. Step 2: Convert to fraction form
    166,737.99/249,927.66 = 72,012.90/x
  3. Step 3: Cross multiply
    166,737.99x = 249,927.66 × 72,012.90
  4. Step 4: Simplify right side
    166,737.99x = 17,998,015,586.81
  5. Step 5: Solve for x
    x = 17,998,015,586.81/166,737.99
  6. Step 6: Final answer
    x = 107,941.90

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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.