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Finding the Fourth Proportional to 117,075.56, 161,566.74 and 69,311.48

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Solution

The fourth proportional to 117,075.56, 161,566.74 and 69,311.48 is: 95,651.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,075.56 : 161,566.74 = 69,311.48 : x
  2. Step 2: Convert to fraction form
    117,075.56/161,566.74 = 69,311.48/x
  3. Step 3: Cross multiply
    117,075.56x = 161,566.74 × 69,311.48
  4. Step 4: Simplify right side
    117,075.56x = 11,198,429,868.18
  5. Step 5: Solve for x
    x = 11,198,429,868.18/117,075.56
  6. Step 6: Final answer
    x = 95,651.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.