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Finding the Fourth Proportional to 372,200.40, 558,075.84 and 166,997.60

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Solution

The fourth proportional to 372,200.40, 558,075.84 and 166,997.60 is: 250,395.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,200.40 : 558,075.84 = 166,997.60 : x
  2. Step 2: Convert to fraction form
    372,200.40/558,075.84 = 166,997.60/x
  3. Step 3: Cross multiply
    372,200.40x = 558,075.84 × 166,997.60
  4. Step 4: Simplify right side
    372,200.40x = 93,197,325,897.98
  5. Step 5: Solve for x
    x = 93,197,325,897.98/372,200.40
  6. Step 6: Final answer
    x = 250,395.56

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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.