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Finding the Fourth Proportional to 108,215.67, 149,355.04 and 67,935.23

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Solution

The fourth proportional to 108,215.67, 149,355.04 and 67,935.23 is: 93,761.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,215.67 : 149,355.04 = 67,935.23 : x
  2. Step 2: Convert to fraction form
    108,215.67/149,355.04 = 67,935.23/x
  3. Step 3: Cross multiply
    108,215.67x = 149,355.04 × 67,935.23
  4. Step 4: Simplify right side
    108,215.67x = 10,146,468,417.12
  5. Step 5: Solve for x
    x = 10,146,468,417.12/108,215.67
  6. Step 6: Final answer
    x = 93,761.55

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1.5x scale

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.