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Finding the Fourth Proportional to 98,170.09, 147,170.80 and 34,119.91

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Solution

The fourth proportional to 98,170.09, 147,170.80 and 34,119.91 is: 51,150.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,170.09 : 147,170.80 = 34,119.91 : x
  2. Step 2: Convert to fraction form
    98,170.09/147,170.80 = 34,119.91/x
  3. Step 3: Cross multiply
    98,170.09x = 147,170.80 × 34,119.91
  4. Step 4: Simplify right side
    98,170.09x = 5,021,454,450.63
  5. Step 5: Solve for x
    x = 5,021,454,450.63/98,170.09
  6. Step 6: Final answer
    x = 51,150.55

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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.