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Finding the Fourth Proportional to 484,696.24, 727,033.92 and 129,710.20

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Solution

The fourth proportional to 484,696.24, 727,033.92 and 129,710.20 is: 194,562.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,696.24 : 727,033.92 = 129,710.20 : x
  2. Step 2: Convert to fraction form
    484,696.24/727,033.92 = 129,710.20/x
  3. Step 3: Cross multiply
    484,696.24x = 727,033.92 × 129,710.20
  4. Step 4: Simplify right side
    484,696.24x = 94,303,715,169.98
  5. Step 5: Solve for x
    x = 94,303,715,169.98/484,696.24
  6. Step 6: Final answer
    x = 194,562.51

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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.