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Finding the Fourth Proportional to 262,448.96, 393,735.90 and 84,955.95

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Solution

The fourth proportional to 262,448.96, 393,735.90 and 84,955.95 is: 127,454.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,448.96 : 393,735.90 = 84,955.95 : x
  2. Step 2: Convert to fraction form
    262,448.96/393,735.90 = 84,955.95/x
  3. Step 3: Cross multiply
    262,448.96x = 393,735.90 × 84,955.95
  4. Step 4: Simplify right side
    262,448.96x = 33,450,207,433.61
  5. Step 5: Solve for x
    x = 33,450,207,433.61/262,448.96
  6. Step 6: Final answer
    x = 127,454.15

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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.