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Finding the Fourth Proportional to 108,599.36, 149,871.36 and 60,853.12

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Solution

The fourth proportional to 108,599.36, 149,871.36 and 60,853.12 is: 83,979.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,599.36 : 149,871.36 = 60,853.12 : x
  2. Step 2: Convert to fraction form
    108,599.36/149,871.36 = 60,853.12/x
  3. Step 3: Cross multiply
    108,599.36x = 149,871.36 × 60,853.12
  4. Step 4: Simplify right side
    108,599.36x = 9,120,139,854.64
  5. Step 5: Solve for x
    x = 9,120,139,854.64/108,599.36
  6. Step 6: Final answer
    x = 83,979.68

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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.