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Finding the Fourth Proportional to 140,876.64, 211,578.20 and 124,015.68

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Solution

The fourth proportional to 140,876.64, 211,578.20 and 124,015.68 is: 186,255.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,876.64 : 211,578.20 = 124,015.68 : x
  2. Step 2: Convert to fraction form
    140,876.64/211,578.20 = 124,015.68/x
  3. Step 3: Cross multiply
    140,876.64x = 211,578.20 × 124,015.68
  4. Step 4: Simplify right side
    140,876.64x = 26,239,014,346.18
  5. Step 5: Solve for x
    x = 26,239,014,346.18/140,876.64
  6. Step 6: Final answer
    x = 186,255.25

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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.