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Finding the Fourth Proportional to 135,383.54, 186,827.04 and 74,952.88

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Solution

The fourth proportional to 135,383.54, 186,827.04 and 74,952.88 is: 103,433.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,383.54 : 186,827.04 = 74,952.88 : x
  2. Step 2: Convert to fraction form
    135,383.54/186,827.04 = 74,952.88/x
  3. Step 3: Cross multiply
    135,383.54x = 186,827.04 × 74,952.88
  4. Step 4: Simplify right side
    135,383.54x = 14,003,224,242.81
  5. Step 5: Solve for x
    x = 14,003,224,242.81/135,383.54
  6. Step 6: Final answer
    x = 103,433.73

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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.