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Finding the Fourth Proportional to 463,556.70, 695,443.50 and 143,691.93

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Solution

The fourth proportional to 463,556.70, 695,443.50 and 143,691.93 is: 215,571.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,556.70 : 695,443.50 = 143,691.93 : x
  2. Step 2: Convert to fraction form
    463,556.70/695,443.50 = 143,691.93/x
  3. Step 3: Cross multiply
    463,556.70x = 695,443.50 × 143,691.93
  4. Step 4: Simplify right side
    463,556.70x = 99,929,618,720.96
  5. Step 5: Solve for x
    x = 99,929,618,720.96/463,556.70
  6. Step 6: Final answer
    x = 215,571.51

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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.