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Finding the Fourth Proportional to 185,751.87, 256,338.52 and 100,868.93

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Solution

The fourth proportional to 185,751.87, 256,338.52 and 100,868.93 is: 139,199.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,751.87 : 256,338.52 = 100,868.93 : x
  2. Step 2: Convert to fraction form
    185,751.87/256,338.52 = 100,868.93/x
  3. Step 3: Cross multiply
    185,751.87x = 256,338.52 × 100,868.93
  4. Step 4: Simplify right side
    185,751.87x = 25,856,592,224.98
  5. Step 5: Solve for x
    x = 25,856,592,224.98/185,751.87
  6. Step 6: Final answer
    x = 139,199.64

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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.