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Finding the Fourth Proportional to 358,625.44, 538,018.80 and 109,332.64

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Solution

The fourth proportional to 358,625.44, 538,018.80 and 109,332.64 is: 164,023.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,625.44 : 538,018.80 = 109,332.64 : x
  2. Step 2: Convert to fraction form
    358,625.44/538,018.80 = 109,332.64/x
  3. Step 3: Cross multiply
    358,625.44x = 538,018.80 × 109,332.64
  4. Step 4: Simplify right side
    358,625.44x = 58,823,015,773.63
  5. Step 5: Solve for x
    x = 58,823,015,773.63/358,625.44
  6. Step 6: Final answer
    x = 164,023.54

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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.