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Finding the Fourth Proportional to 136,903.01, 205,075.67 and 111,692.37

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Solution

The fourth proportional to 136,903.01, 205,075.67 and 111,692.37 is: 167,311.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,903.01 : 205,075.67 = 111,692.37 : x
  2. Step 2: Convert to fraction form
    136,903.01/205,075.67 = 111,692.37/x
  3. Step 3: Cross multiply
    136,903.01x = 205,075.67 × 111,692.37
  4. Step 4: Simplify right side
    136,903.01x = 22,905,387,053.18
  5. Step 5: Solve for x
    x = 22,905,387,053.18/136,903.01
  6. Step 6: Final answer
    x = 167,311.05

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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.