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Finding the Fourth Proportional to 262,212.60, 393,318.90 and 96,065.40

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Solution

The fourth proportional to 262,212.60, 393,318.90 and 96,065.40 is: 144,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,212.60 : 393,318.90 = 96,065.40 : x
  2. Step 2: Convert to fraction form
    262,212.60/393,318.90 = 96,065.40/x
  3. Step 3: Cross multiply
    262,212.60x = 393,318.90 × 96,065.40
  4. Step 4: Simplify right side
    262,212.60x = 37,784,337,456.06
  5. Step 5: Solve for x
    x = 37,784,337,456.06/262,212.60
  6. Step 6: Final answer
    x = 144,098.10

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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.