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Finding the Fourth Proportional to 100,654.25, 151,030.58 and 71,260.97

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Solution

The fourth proportional to 100,654.25, 151,030.58 and 71,260.97 is: 106,926.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,654.25 : 151,030.58 = 71,260.97 : x
  2. Step 2: Convert to fraction form
    100,654.25/151,030.58 = 71,260.97/x
  3. Step 3: Cross multiply
    100,654.25x = 151,030.58 × 71,260.97
  4. Step 4: Simplify right side
    100,654.25x = 10,762,584,519.00
  5. Step 5: Solve for x
    x = 10,762,584,519.00/100,654.25
  6. Step 6: Final answer
    x = 106,926.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.