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Finding the Fourth Proportional to 415,087.35, 622,631.48 and 115,568.58

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Solution

The fourth proportional to 415,087.35, 622,631.48 and 115,568.58 is: 173,353.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,087.35 : 622,631.48 = 115,568.58 : x
  2. Step 2: Convert to fraction form
    415,087.35/622,631.48 = 115,568.58/x
  3. Step 3: Cross multiply
    415,087.35x = 622,631.48 × 115,568.58
  4. Step 4: Simplify right side
    415,087.35x = 71,956,637,763.92
  5. Step 5: Solve for x
    x = 71,956,637,763.92/415,087.35
  6. Step 6: Final answer
    x = 173,353.00

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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.