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Finding the Third Proportional to 218,674.50 and 357,075.75

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Solution

The third proportional to 218,674.50 and 357,075.75 is: 583,072.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,674.50 : 357,075.75 = 357,075.75 : x
  2. Step 2: Convert to fraction form
    218,674.50/357,075.75 = 357,075.75/x
  3. Step 3: Cross multiply
    218,674.50x = 357,075.75 × 357,075.75
  4. Step 4: Simplify right side
    218,674.50x = 127,503,091,238.06
  5. Step 5: Solve for x
    x = 127,503,091,238.06/218,674.50
  6. Step 6: Final answer
    x = 583,072.52

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.