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Finding the Third Proportional to 121,357.63 and 266,043.25

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Solution

The third proportional to 121,357.63 and 266,043.25 is: 583,226.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,357.63 : 266,043.25 = 266,043.25 : x
  2. Step 2: Convert to fraction form
    121,357.63/266,043.25 = 266,043.25/x
  3. Step 3: Cross multiply
    121,357.63x = 266,043.25 × 266,043.25
  4. Step 4: Simplify right side
    121,357.63x = 70,779,010,870.56
  5. Step 5: Solve for x
    x = 70,779,010,870.56/121,357.63
  6. Step 6: Final answer
    x = 583,226.73

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.