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Finding the Fourth Proportional to 93,578.96, 140,389.32 and 27,019.28

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Solution

The fourth proportional to 93,578.96, 140,389.32 and 27,019.28 is: 40,534.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,578.96 : 140,389.32 = 27,019.28 : x
  2. Step 2: Convert to fraction form
    93,578.96/140,389.32 = 27,019.28/x
  3. Step 3: Cross multiply
    93,578.96x = 140,389.32 × 27,019.28
  4. Step 4: Simplify right side
    93,578.96x = 3,793,218,346.09
  5. Step 5: Solve for x
    x = 3,793,218,346.09/93,578.96
  6. Step 6: Final answer
    x = 40,534.95

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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.