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Finding the Fourth Proportional to 98,354.36, 135,740.94 and 55,923.32

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Solution

The fourth proportional to 98,354.36, 135,740.94 and 55,923.32 is: 77,180.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,354.36 : 135,740.94 = 55,923.32 : x
  2. Step 2: Convert to fraction form
    98,354.36/135,740.94 = 55,923.32/x
  3. Step 3: Cross multiply
    98,354.36x = 135,740.94 × 55,923.32
  4. Step 4: Simplify right side
    98,354.36x = 7,591,084,024.72
  5. Step 5: Solve for x
    x = 7,591,084,024.72/98,354.36
  6. Step 6: Final answer
    x = 77,180.96

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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.