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Finding the Fourth Proportional to 135,046.88, 186,355.65 and 74,616.88

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Solution

The fourth proportional to 135,046.88, 186,355.65 and 74,616.88 is: 102,966.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,046.88 : 186,355.65 = 74,616.88 : x
  2. Step 2: Convert to fraction form
    135,046.88/186,355.65 = 74,616.88/x
  3. Step 3: Cross multiply
    135,046.88x = 186,355.65 × 74,616.88
  4. Step 4: Simplify right side
    135,046.88x = 13,905,277,173.37
  5. Step 5: Solve for x
    x = 13,905,277,173.37/135,046.88
  6. Step 6: Final answer
    x = 102,966.30

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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.