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Finding the Fourth Proportional to 118,703.28, 178,072.47 and 34,452.53

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Solution

The fourth proportional to 118,703.28, 178,072.47 and 34,452.53 is: 51,683.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,703.28 : 178,072.47 = 34,452.53 : x
  2. Step 2: Convert to fraction form
    118,703.28/178,072.47 = 34,452.53/x
  3. Step 3: Cross multiply
    118,703.28x = 178,072.47 × 34,452.53
  4. Step 4: Simplify right side
    118,703.28x = 6,135,046,892.26
  5. Step 5: Solve for x
    x = 6,135,046,892.26/118,703.28
  6. Step 6: Final answer
    x = 51,683.89

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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.