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Finding the Fourth Proportional to 358,086.39, 537,129.71 and 91,846.88

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Solution

The fourth proportional to 358,086.39, 537,129.71 and 91,846.88 is: 137,770.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,086.39 : 537,129.71 = 91,846.88 : x
  2. Step 2: Convert to fraction form
    358,086.39/537,129.71 = 91,846.88/x
  3. Step 3: Cross multiply
    358,086.39x = 537,129.71 × 91,846.88
  4. Step 4: Simplify right side
    358,086.39x = 49,333,684,873.92
  5. Step 5: Solve for x
    x = 49,333,684,873.92/358,086.39
  6. Step 6: Final answer
    x = 137,770.34

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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.