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Finding the Fourth Proportional to 93,244.32, 139,755.42 and 53,719.56

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Solution

The fourth proportional to 93,244.32, 139,755.42 and 53,719.56 is: 80,515.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,244.32 : 139,755.42 = 53,719.56 : x
  2. Step 2: Convert to fraction form
    93,244.32/139,755.42 = 53,719.56/x
  3. Step 3: Cross multiply
    93,244.32x = 139,755.42 × 53,719.56
  4. Step 4: Simplify right side
    93,244.32x = 7,507,599,670.02
  5. Step 5: Solve for x
    x = 7,507,599,670.02/93,244.32
  6. Step 6: Final answer
    x = 80,515.36

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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.