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Finding the Fourth Proportional to 105,616.94, 158,425.64 and 25,654.55

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Solution

The fourth proportional to 105,616.94, 158,425.64 and 25,654.55 is: 38,481.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,616.94 : 158,425.64 = 25,654.55 : x
  2. Step 2: Convert to fraction form
    105,616.94/158,425.64 = 25,654.55/x
  3. Step 3: Cross multiply
    105,616.94x = 158,425.64 × 25,654.55
  4. Step 4: Simplify right side
    105,616.94x = 4,064,337,678.47
  5. Step 5: Solve for x
    x = 4,064,337,678.47/105,616.94
  6. Step 6: Final answer
    x = 38,481.87

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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.