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Finding the Fourth Proportional to 134,662.93, 185,847.96 and 100,612.33

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Solution

The fourth proportional to 134,662.93, 185,847.96 and 100,612.33 is: 138,854.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,662.93 : 185,847.96 = 100,612.33 : x
  2. Step 2: Convert to fraction form
    134,662.93/185,847.96 = 100,612.33/x
  3. Step 3: Cross multiply
    134,662.93x = 185,847.96 × 100,612.33
  4. Step 4: Simplify right side
    134,662.93x = 18,698,595,486.59
  5. Step 5: Solve for x
    x = 18,698,595,486.59/134,662.93
  6. Step 6: Final answer
    x = 138,854.81

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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.