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Finding the Fourth Proportional to 262,174.19, 393,269.99 and 72,636.46

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Solution

The fourth proportional to 262,174.19, 393,269.99 and 72,636.46 is: 108,957.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,174.19 : 393,269.99 = 72,636.46 : x
  2. Step 2: Convert to fraction form
    262,174.19/393,269.99 = 72,636.46/x
  3. Step 3: Cross multiply
    262,174.19x = 393,269.99 × 72,636.46
  4. Step 4: Simplify right side
    262,174.19x = 28,565,738,551.48
  5. Step 5: Solve for x
    x = 28,565,738,551.48/262,174.19
  6. Step 6: Final answer
    x = 108,957.10

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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.