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Finding the Fourth Proportional to 114,485.53, 171,743.93 and 39,585.57

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Solution

The fourth proportional to 114,485.53, 171,743.93 and 39,585.57 is: 59,383.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,485.53 : 171,743.93 = 39,585.57 : x
  2. Step 2: Convert to fraction form
    114,485.53/171,743.93 = 39,585.57/x
  3. Step 3: Cross multiply
    114,485.53x = 171,743.93 × 39,585.57
  4. Step 4: Simplify right side
    114,485.53x = 6,798,581,363.09
  5. Step 5: Solve for x
    x = 6,798,581,363.09/114,485.53
  6. Step 6: Final answer
    x = 59,383.76

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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.