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Finding the Fourth Proportional to 108,291.75, 149,461.08 and 62,996.02

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Solution

The fourth proportional to 108,291.75, 149,461.08 and 62,996.02 is: 86,945.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,291.75 : 149,461.08 = 62,996.02 : x
  2. Step 2: Convert to fraction form
    108,291.75/149,461.08 = 62,996.02/x
  3. Step 3: Cross multiply
    108,291.75x = 149,461.08 × 62,996.02
  4. Step 4: Simplify right side
    108,291.75x = 9,415,452,437.60
  5. Step 5: Solve for x
    x = 9,415,452,437.60/108,291.75
  6. Step 6: Final answer
    x = 86,945.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.