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Finding the Fourth Proportional to 125,990.76, 188,924.55 and 54,973.41

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Solution

The fourth proportional to 125,990.76, 188,924.55 and 54,973.41 is: 82,433.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,990.76 : 188,924.55 = 54,973.41 : x
  2. Step 2: Convert to fraction form
    125,990.76/188,924.55 = 54,973.41/x
  3. Step 3: Cross multiply
    125,990.76x = 188,924.55 × 54,973.41
  4. Step 4: Simplify right side
    125,990.76x = 10,385,826,746.22
  5. Step 5: Solve for x
    x = 10,385,826,746.22/125,990.76
  6. Step 6: Final answer
    x = 82,433.24

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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.