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Finding the Fourth Proportional to 98,010.09, 147,015.12 and 27,889.40

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Solution

The fourth proportional to 98,010.09, 147,015.12 and 27,889.40 is: 41,834.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,010.09 : 147,015.12 = 27,889.40 : x
  2. Step 2: Convert to fraction form
    98,010.09/147,015.12 = 27,889.40/x
  3. Step 3: Cross multiply
    98,010.09x = 147,015.12 × 27,889.40
  4. Step 4: Simplify right side
    98,010.09x = 4,100,162,752.65
  5. Step 5: Solve for x
    x = 4,100,162,752.65/98,010.09
  6. Step 6: Final answer
    x = 41,834.09

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Similar ratio
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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.