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Finding the Fourth Proportional to 108,165.68, 149,253.81 and 60,412.94

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Solution

The fourth proportional to 108,165.68, 149,253.81 and 60,412.94 is: 83,361.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,165.68 : 149,253.81 = 60,412.94 : x
  2. Step 2: Convert to fraction form
    108,165.68/149,253.81 = 60,412.94/x
  3. Step 3: Cross multiply
    108,165.68x = 149,253.81 × 60,412.94
  4. Step 4: Simplify right side
    108,165.68x = 9,016,861,468.30
  5. Step 5: Solve for x
    x = 9,016,861,468.30/108,165.68
  6. Step 6: Final answer
    x = 83,361.58

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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.