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Finding the Fourth Proportional to 358,086.89, 537,130.46 and 91,847.38

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Solution

The fourth proportional to 358,086.89, 537,130.46 and 91,847.38 is: 137,771.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,086.89 : 537,130.46 = 91,847.38 : x
  2. Step 2: Convert to fraction form
    358,086.89/537,130.46 = 91,847.38/x
  3. Step 3: Cross multiply
    358,086.89x = 537,130.46 × 91,847.38
  4. Step 4: Simplify right side
    358,086.89x = 49,334,025,469.19
  5. Step 5: Solve for x
    x = 49,334,025,469.19/358,086.89
  6. Step 6: Final answer
    x = 137,771.10

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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.