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Finding the Fourth Proportional to 114,558.71, 171,892.74 and 55,361.48

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Solution

The fourth proportional to 114,558.71, 171,892.74 and 55,361.48 is: 83,068.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,558.71 : 171,892.74 = 55,361.48 : x
  2. Step 2: Convert to fraction form
    114,558.71/171,892.74 = 55,361.48/x
  3. Step 3: Cross multiply
    114,558.71x = 171,892.74 × 55,361.48
  4. Step 4: Simplify right side
    114,558.71x = 9,516,236,487.66
  5. Step 5: Solve for x
    x = 9,516,236,487.66/114,558.71
  6. Step 6: Final answer
    x = 83,068.64

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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.