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Finding the Fourth Proportional to 349,400.63, 524,223.96 and 172,032.20

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Solution

The fourth proportional to 349,400.63, 524,223.96 and 172,032.20 is: 258,108.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,400.63 : 524,223.96 = 172,032.20 : x
  2. Step 2: Convert to fraction form
    349,400.63/524,223.96 = 172,032.20/x
  3. Step 3: Cross multiply
    349,400.63x = 524,223.96 × 172,032.20
  4. Step 4: Simplify right side
    349,400.63x = 90,183,401,131.51
  5. Step 5: Solve for x
    x = 90,183,401,131.51/349,400.63
  6. Step 6: Final answer
    x = 258,108.87

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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.