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Finding the Fourth Proportional to 297,441.78, 446,162.66 and 87,079.72

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Solution

The fourth proportional to 297,441.78, 446,162.66 and 87,079.72 is: 130,619.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,441.78 : 446,162.66 = 87,079.72 : x
  2. Step 2: Convert to fraction form
    297,441.78/446,162.66 = 87,079.72/x
  3. Step 3: Cross multiply
    297,441.78x = 446,162.66 × 87,079.72
  4. Step 4: Simplify right side
    297,441.78x = 38,851,719,507.26
  5. Step 5: Solve for x
    x = 38,851,719,507.26/297,441.78
  6. Step 6: Final answer
    x = 130,619.58

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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.