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Finding the Fourth Proportional to 295,472.48, 443,143.90 and 85,064.72

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Solution

The fourth proportional to 295,472.48, 443,143.90 and 85,064.72 is: 127,578.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,472.48 : 443,143.90 = 85,064.72 : x
  2. Step 2: Convert to fraction form
    295,472.48/443,143.90 = 85,064.72/x
  3. Step 3: Cross multiply
    295,472.48x = 443,143.90 × 85,064.72
  4. Step 4: Simplify right side
    295,472.48x = 37,695,911,773.21
  5. Step 5: Solve for x
    x = 37,695,911,773.21/295,472.48
  6. Step 6: Final answer
    x = 127,578.42

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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.