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Finding the Fourth Proportional to 98,325.36, 135,700.65 and 55,890.27

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Solution

The fourth proportional to 98,325.36, 135,700.65 and 55,890.27 is: 77,135.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,325.36 : 135,700.65 = 55,890.27 : x
  2. Step 2: Convert to fraction form
    98,325.36/135,700.65 = 55,890.27/x
  3. Step 3: Cross multiply
    98,325.36x = 135,700.65 × 55,890.27
  4. Step 4: Simplify right side
    98,325.36x = 7,584,345,967.68
  5. Step 5: Solve for x
    x = 7,584,345,967.68/98,325.36
  6. Step 6: Final answer
    x = 77,135.20

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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.