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Finding the Fourth Proportional to 98,477.60, 135,898.97 and 58,205.88

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Solution

The fourth proportional to 98,477.60, 135,898.97 and 58,205.88 is: 80,324.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,477.60 : 135,898.97 = 58,205.88 : x
  2. Step 2: Convert to fraction form
    98,477.60/135,898.97 = 58,205.88/x
  3. Step 3: Cross multiply
    98,477.60x = 135,898.97 × 58,205.88
  4. Step 4: Simplify right side
    98,477.60x = 7,910,118,848.91
  5. Step 5: Solve for x
    x = 7,910,118,848.91/98,477.60
  6. Step 6: Final answer
    x = 80,324.05

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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.