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Finding the Fourth Proportional to 99,794.96, 149,686.77 and 60,341.48

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Solution

The fourth proportional to 99,794.96, 149,686.77 and 60,341.48 is: 90,508.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,794.96 : 149,686.77 = 60,341.48 : x
  2. Step 2: Convert to fraction form
    99,794.96/149,686.77 = 60,341.48/x
  3. Step 3: Cross multiply
    99,794.96x = 149,686.77 × 60,341.48
  4. Step 4: Simplify right side
    99,794.96x = 9,032,321,238.22
  5. Step 5: Solve for x
    x = 9,032,321,238.22/99,794.96
  6. Step 6: Final answer
    x = 90,508.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.