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Finding the Fourth Proportional to 253,021.90, 349,192.44 and 139,866.52

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Solution

The fourth proportional to 253,021.90, 349,192.44 and 139,866.52 is: 193,028.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,021.90 : 349,192.44 = 139,866.52 : x
  2. Step 2: Convert to fraction form
    253,021.90/349,192.44 = 139,866.52/x
  3. Step 3: Cross multiply
    253,021.90x = 349,192.44 × 139,866.52
  4. Step 4: Simplify right side
    253,021.90x = 48,840,331,393.11
  5. Step 5: Solve for x
    x = 48,840,331,393.11/253,021.90
  6. Step 6: Final answer
    x = 193,028.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.