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Finding the Fourth Proportional to 116,537.40, 174,830.40 and 66,576.60

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Solution

The fourth proportional to 116,537.40, 174,830.40 and 66,576.60 is: 99,878.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,537.40 : 174,830.40 = 66,576.60 : x
  2. Step 2: Convert to fraction form
    116,537.40/174,830.40 = 66,576.60/x
  3. Step 3: Cross multiply
    116,537.40x = 174,830.40 × 66,576.60
  4. Step 4: Simplify right side
    116,537.40x = 11,639,613,608.64
  5. Step 5: Solve for x
    x = 11,639,613,608.64/116,537.40
  6. Step 6: Final answer
    x = 99,878.78

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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.