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Finding the Fourth Proportional to 93,003.71, 139,527.43 and 28,958.90

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Solution

The fourth proportional to 93,003.71, 139,527.43 and 28,958.90 is: 43,445.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,003.71 : 139,527.43 = 28,958.90 : x
  2. Step 2: Convert to fraction form
    93,003.71/139,527.43 = 28,958.90/x
  3. Step 3: Cross multiply
    93,003.71x = 139,527.43 × 28,958.90
  4. Step 4: Simplify right side
    93,003.71x = 4,040,560,122.59
  5. Step 5: Solve for x
    x = 4,040,560,122.59/93,003.71
  6. Step 6: Final answer
    x = 43,445.15

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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.