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Finding the Fourth Proportional to 125,323.74, 188,034.84 and 55,153.86

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Solution

The fourth proportional to 125,323.74, 188,034.84 and 55,153.86 is: 82,752.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,323.74 : 188,034.84 = 55,153.86 : x
  2. Step 2: Convert to fraction form
    125,323.74/188,034.84 = 55,153.86/x
  3. Step 3: Cross multiply
    125,323.74x = 188,034.84 × 55,153.86
  4. Step 4: Simplify right side
    125,323.74x = 10,370,847,240.48
  5. Step 5: Solve for x
    x = 10,370,847,240.48/125,323.74
  6. Step 6: Final answer
    x = 82,752.46

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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.