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Finding the Fourth Proportional to 253,251.36, 349,511.76 and 145,825.92

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Solution

The fourth proportional to 253,251.36, 349,511.76 and 145,825.92 is: 201,254.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,251.36 : 349,511.76 = 145,825.92 : x
  2. Step 2: Convert to fraction form
    253,251.36/349,511.76 = 145,825.92/x
  3. Step 3: Cross multiply
    253,251.36x = 349,511.76 × 145,825.92
  4. Step 4: Simplify right side
    253,251.36x = 50,967,873,952.82
  5. Step 5: Solve for x
    x = 50,967,873,952.82/253,251.36
  6. Step 6: Final answer
    x = 201,254.10

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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.