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Finding the Fourth Proportional to 576,106.80, 864,160.20 and 155,382.60

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Solution

The fourth proportional to 576,106.80, 864,160.20 and 155,382.60 is: 233,073.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,106.80 : 864,160.20 = 155,382.60 : x
  2. Step 2: Convert to fraction form
    576,106.80/864,160.20 = 155,382.60/x
  3. Step 3: Cross multiply
    576,106.80x = 864,160.20 × 155,382.60
  4. Step 4: Simplify right side
    576,106.80x = 134,275,458,692.52
  5. Step 5: Solve for x
    x = 134,275,458,692.52/576,106.80
  6. Step 6: Final answer
    x = 233,073.90

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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.