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Finding the Fourth Proportional to 262,637.67, 362,439.68 and 155,246.43

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Solution

The fourth proportional to 262,637.67, 362,439.68 and 155,246.43 is: 214,239.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,637.67 : 362,439.68 = 155,246.43 : x
  2. Step 2: Convert to fraction form
    262,637.67/362,439.68 = 155,246.43/x
  3. Step 3: Cross multiply
    262,637.67x = 362,439.68 × 155,246.43
  4. Step 4: Simplify right side
    262,637.67x = 56,267,465,634.11
  5. Step 5: Solve for x
    x = 56,267,465,634.11/262,637.67
  6. Step 6: Final answer
    x = 214,239.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.