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Finding the Fourth Proportional to 295,472.23, 443,143.53 and 85,064.47

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Solution

The fourth proportional to 295,472.23, 443,143.53 and 85,064.47 is: 127,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,472.23 : 443,143.53 = 85,064.47 : x
  2. Step 2: Convert to fraction form
    295,472.23/443,143.53 = 85,064.47/x
  3. Step 3: Cross multiply
    295,472.23x = 443,143.53 × 85,064.47
  4. Step 4: Simplify right side
    295,472.23x = 37,695,769,513.38
  5. Step 5: Solve for x
    x = 37,695,769,513.38/295,472.23
  6. Step 6: Final answer
    x = 127,578.05

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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.