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Finding the Fourth Proportional to 145,438.67, 218,104.02 and 50,644.53

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Solution

The fourth proportional to 145,438.67, 218,104.02 and 50,644.53 is: 75,948.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,438.67 : 218,104.02 = 50,644.53 : x
  2. Step 2: Convert to fraction form
    145,438.67/218,104.02 = 50,644.53/x
  3. Step 3: Cross multiply
    145,438.67x = 218,104.02 × 50,644.53
  4. Step 4: Simplify right side
    145,438.67x = 11,045,775,584.01
  5. Step 5: Solve for x
    x = 11,045,775,584.01/145,438.67
  6. Step 6: Final answer
    x = 75,948.00

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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.