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Finding the Fourth Proportional to 355,551.80, 532,463.70 and 188,972.60

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Solution

The fourth proportional to 355,551.80, 532,463.70 and 188,972.60 is: 282,999.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,551.80 : 532,463.70 = 188,972.60 : x
  2. Step 2: Convert to fraction form
    355,551.80/532,463.70 = 188,972.60/x
  3. Step 3: Cross multiply
    355,551.80x = 532,463.70 × 188,972.60
  4. Step 4: Simplify right side
    355,551.80x = 100,621,049,794.62
  5. Step 5: Solve for x
    x = 100,621,049,794.62/355,551.80
  6. Step 6: Final answer
    x = 282,999.69

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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.