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Finding the Fourth Proportional to 355,436.80, 532,291.20 and 188,857.60

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Solution

The fourth proportional to 355,436.80, 532,291.20 and 188,857.60 is: 282,827.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,436.80 : 532,291.20 = 188,857.60 : x
  2. Step 2: Convert to fraction form
    355,436.80/532,291.20 = 188,857.60/x
  3. Step 3: Cross multiply
    355,436.80x = 532,291.20 × 188,857.60
  4. Step 4: Simplify right side
    355,436.80x = 100,527,238,533.12
  5. Step 5: Solve for x
    x = 100,527,238,533.12/355,436.80
  6. Step 6: Final answer
    x = 282,827.32

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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.