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Finding the Fourth Proportional to 282,428.40, 423,601.56 and 92,895.96

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Solution

The fourth proportional to 282,428.40, 423,601.56 and 92,895.96 is: 139,330.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,428.40 : 423,601.56 = 92,895.96 : x
  2. Step 2: Convert to fraction form
    282,428.40/423,601.56 = 92,895.96/x
  3. Step 3: Cross multiply
    282,428.40x = 423,601.56 × 92,895.96
  4. Step 4: Simplify right side
    282,428.40x = 39,350,873,573.70
  5. Step 5: Solve for x
    x = 39,350,873,573.70/282,428.40
  6. Step 6: Final answer
    x = 139,330.44

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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.