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Finding the Fourth Proportional to 98,564.92, 136,019.64 and 53,852.92

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Solution

The fourth proportional to 98,564.92, 136,019.64 and 53,852.92 is: 74,317.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,564.92 : 136,019.64 = 53,852.92 : x
  2. Step 2: Convert to fraction form
    98,564.92/136,019.64 = 53,852.92/x
  3. Step 3: Cross multiply
    98,564.92x = 136,019.64 × 53,852.92
  4. Step 4: Simplify right side
    98,564.92x = 7,325,054,791.35
  5. Step 5: Solve for x
    x = 7,325,054,791.35/98,564.92
  6. Step 6: Final answer
    x = 74,317.06

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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.