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Finding the Fourth Proportional to 98,337, 135,716.64 and 55,901.88

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Solution

The fourth proportional to 98,337, 135,716.64 and 55,901.88 is: 77,151.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,337 : 135,716.64 = 55,901.88 : x
  2. Step 2: Convert to fraction form
    98,337/135,716.64 = 55,901.88/x
  3. Step 3: Cross multiply
    98,337x = 135,716.64 × 55,901.88
  4. Step 4: Simplify right side
    98,337x = 7,586,815,323.28
  5. Step 5: Solve for x
    x = 7,586,815,323.28/98,337
  6. Step 6: Final answer
    x = 77,151.18

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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.