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Finding the Fourth Proportional to 295,484.64, 443,162.16 and 85,076.88

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Solution

The fourth proportional to 295,484.64, 443,162.16 and 85,076.88 is: 127,596.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,484.64 : 443,162.16 = 85,076.88 : x
  2. Step 2: Convert to fraction form
    295,484.64/443,162.16 = 85,076.88/x
  3. Step 3: Cross multiply
    295,484.64x = 443,162.16 × 85,076.88
  4. Step 4: Simplify right side
    295,484.64x = 37,702,853,906.86
  5. Step 5: Solve for x
    x = 37,702,853,906.86/295,484.64
  6. Step 6: Final answer
    x = 127,596.66

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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.