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Finding the Fourth Proportional to 98,080.56, 135,363.42 and 55,652.76

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Solution

The fourth proportional to 98,080.56, 135,363.42 and 55,652.76 is: 76,807.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,080.56 : 135,363.42 = 55,652.76 : x
  2. Step 2: Convert to fraction form
    98,080.56/135,363.42 = 55,652.76/x
  3. Step 3: Cross multiply
    98,080.56x = 135,363.42 × 55,652.76
  4. Step 4: Simplify right side
    98,080.56x = 7,533,347,926.04
  5. Step 5: Solve for x
    x = 7,533,347,926.04/98,080.56
  6. Step 6: Final answer
    x = 76,807.76

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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.