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Finding the Fourth Proportional to 279,825.52, 386,149.44 and 152,498.56

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Solution

The fourth proportional to 279,825.52, 386,149.44 and 152,498.56 is: 210,442.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,825.52 : 386,149.44 = 152,498.56 : x
  2. Step 2: Convert to fraction form
    279,825.52/386,149.44 = 152,498.56/x
  3. Step 3: Cross multiply
    279,825.52x = 386,149.44 × 152,498.56
  4. Step 4: Simplify right side
    279,825.52x = 58,887,233,544.81
  5. Step 5: Solve for x
    x = 58,887,233,544.81/279,825.52
  6. Step 6: Final answer
    x = 210,442.68

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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.