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Finding the Fourth Proportional to 108,203.94, 149,318.64 and 60,457.64

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Solution

The fourth proportional to 108,203.94, 149,318.64 and 60,457.64 is: 83,429.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,203.94 : 149,318.64 = 60,457.64 : x
  2. Step 2: Convert to fraction form
    108,203.94/149,318.64 = 60,457.64/x
  3. Step 3: Cross multiply
    108,203.94x = 149,318.64 × 60,457.64
  4. Step 4: Simplify right side
    108,203.94x = 9,027,451,835.82
  5. Step 5: Solve for x
    x = 9,027,451,835.82/108,203.94
  6. Step 6: Final answer
    x = 83,429.97

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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.