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Finding the Fourth Proportional to 98,174.97, 135,466.70 and 55,146.22

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Solution

The fourth proportional to 98,174.97, 135,466.70 and 55,146.22 is: 76,093.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,174.97 : 135,466.70 = 55,146.22 : x
  2. Step 2: Convert to fraction form
    98,174.97/135,466.70 = 55,146.22/x
  3. Step 3: Cross multiply
    98,174.97x = 135,466.70 × 55,146.22
  4. Step 4: Simplify right side
    98,174.97x = 7,470,475,826.48
  5. Step 5: Solve for x
    x = 7,470,475,826.48/98,174.97
  6. Step 6: Final answer
    x = 76,093.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.