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Finding the Fourth Proportional to 89,924.69, 134,886.80 and 84,443.97

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Solution

The fourth proportional to 89,924.69, 134,886.80 and 84,443.97 is: 126,665.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,924.69 : 134,886.80 = 84,443.97 : x
  2. Step 2: Convert to fraction form
    89,924.69/134,886.80 = 84,443.97/x
  3. Step 3: Cross multiply
    89,924.69x = 134,886.80 × 84,443.97
  4. Step 4: Simplify right side
    89,924.69x = 11,390,376,892.60
  5. Step 5: Solve for x
    x = 11,390,376,892.60/89,924.69
  6. Step 6: Final answer
    x = 126,665.73

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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.