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Finding the Fourth Proportional to 400,923.70, 601,400.07 and 134,692.90

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Solution

The fourth proportional to 400,923.70, 601,400.07 and 134,692.90 is: 202,044.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,923.70 : 601,400.07 = 134,692.90 : x
  2. Step 2: Convert to fraction form
    400,923.70/601,400.07 = 134,692.90/x
  3. Step 3: Cross multiply
    400,923.70x = 601,400.07 × 134,692.90
  4. Step 4: Simplify right side
    400,923.70x = 81,004,319,488.50
  5. Step 5: Solve for x
    x = 81,004,319,488.50/400,923.70
  6. Step 6: Final answer
    x = 202,044.23

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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.