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Finding the Fourth Proportional to 108,419.52, 149,599.26 and 62,472

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Solution

The fourth proportional to 108,419.52, 149,599.26 and 62,472 is: 86,200.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,419.52 : 149,599.26 = 62,472 : x
  2. Step 2: Convert to fraction form
    108,419.52/149,599.26 = 62,472/x
  3. Step 3: Cross multiply
    108,419.52x = 149,599.26 × 62,472
  4. Step 4: Simplify right side
    108,419.52x = 9,345,764,970.72
  5. Step 5: Solve for x
    x = 9,345,764,970.72/108,419.52
  6. Step 6: Final answer
    x = 86,200.02

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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.