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Finding the Fourth Proportional to 365,955.91, 548,512.66 and 141,216.95

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Solution

The fourth proportional to 365,955.91, 548,512.66 and 141,216.95 is: 211,662.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,955.91 : 548,512.66 = 141,216.95 : x
  2. Step 2: Convert to fraction form
    365,955.91/548,512.66 = 141,216.95/x
  3. Step 3: Cross multiply
    365,955.91x = 548,512.66 × 141,216.95
  4. Step 4: Simplify right side
    365,955.91x = 77,459,286,429.39
  5. Step 5: Solve for x
    x = 77,459,286,429.39/365,955.91
  6. Step 6: Final answer
    x = 211,662.89

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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.