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Finding the Fourth Proportional to 415,273.74, 622,806.93 and 134,871.18

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Solution

The fourth proportional to 415,273.74, 622,806.93 and 134,871.18 is: 202,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,273.74 : 622,806.93 = 134,871.18 : x
  2. Step 2: Convert to fraction form
    415,273.74/622,806.93 = 134,871.18/x
  3. Step 3: Cross multiply
    415,273.74x = 622,806.93 × 134,871.18
  4. Step 4: Simplify right side
    415,273.74x = 83,998,705,561.28
  5. Step 5: Solve for x
    x = 83,998,705,561.28/415,273.74
  6. Step 6: Final answer
    x = 202,273.10

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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.