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Finding the Fourth Proportional to 270,692.61, 405,810.54 and 170,632.20

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Solution

The fourth proportional to 270,692.61, 405,810.54 and 170,632.20 is: 255,804.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,692.61 : 405,810.54 = 170,632.20 : x
  2. Step 2: Convert to fraction form
    270,692.61/405,810.54 = 170,632.20/x
  3. Step 3: Cross multiply
    270,692.61x = 405,810.54 × 170,632.20
  4. Step 4: Simplify right side
    270,692.61x = 69,244,345,223.39
  5. Step 5: Solve for x
    x = 69,244,345,223.39/270,692.61
  6. Step 6: Final answer
    x = 255,804.34

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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.