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Finding the Fourth Proportional to 218,568.57, 301,624.28 and 123,075.95

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Solution

The fourth proportional to 218,568.57, 301,624.28 and 123,075.95 is: 169,844.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,568.57 : 301,624.28 = 123,075.95 : x
  2. Step 2: Convert to fraction form
    218,568.57/301,624.28 = 123,075.95/x
  3. Step 3: Cross multiply
    218,568.57x = 301,624.28 × 123,075.95
  4. Step 4: Simplify right side
    218,568.57x = 37,122,693,057.60
  5. Step 5: Solve for x
    x = 37,122,693,057.60/218,568.57
  6. Step 6: Final answer
    x = 169,844.61

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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.