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Finding the Fourth Proportional to 135,654.67, 186,987.72 and 106,927.75

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Solution

The fourth proportional to 135,654.67, 186,987.72 and 106,927.75 is: 147,390.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,654.67 : 186,987.72 = 106,927.75 : x
  2. Step 2: Convert to fraction form
    135,654.67/186,987.72 = 106,927.75/x
  3. Step 3: Cross multiply
    135,654.67x = 186,987.72 × 106,927.75
  4. Step 4: Simplify right side
    135,654.67x = 19,994,176,177.23
  5. Step 5: Solve for x
    x = 19,994,176,177.23/135,654.67
  6. Step 6: Final answer
    x = 147,390.25

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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.