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Finding the Fourth Proportional to 262,285.80, 393,428.70 and 232,761.30

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Solution

The fourth proportional to 262,285.80, 393,428.70 and 232,761.30 is: 349,141.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,285.80 : 393,428.70 = 232,761.30 : x
  2. Step 2: Convert to fraction form
    262,285.80/393,428.70 = 232,761.30/x
  3. Step 3: Cross multiply
    262,285.80x = 393,428.70 × 232,761.30
  4. Step 4: Simplify right side
    262,285.80x = 91,574,975,669.31
  5. Step 5: Solve for x
    x = 91,574,975,669.31/262,285.80
  6. Step 6: Final answer
    x = 349,141.95

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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.