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Finding the Fourth Proportional to 259,253.85, 389,020.20 and 249,817.46

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Solution

The fourth proportional to 259,253.85, 389,020.20 and 249,817.46 is: 374,860.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,253.85 : 389,020.20 = 249,817.46 : x
  2. Step 2: Convert to fraction form
    259,253.85/389,020.20 = 249,817.46/x
  3. Step 3: Cross multiply
    259,253.85x = 389,020.20 × 249,817.46
  4. Step 4: Simplify right side
    259,253.85x = 97,184,038,252.69
  5. Step 5: Solve for x
    x = 97,184,038,252.69/259,253.85
  6. Step 6: Final answer
    x = 374,860.54

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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.