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Finding the Fourth Proportional to 188,320.92, 259,927.72 and 107,794.98

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Solution

The fourth proportional to 188,320.92, 259,927.72 and 107,794.98 is: 148,782.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,320.92 : 259,927.72 = 107,794.98 : x
  2. Step 2: Convert to fraction form
    188,320.92/259,927.72 = 107,794.98/x
  3. Step 3: Cross multiply
    188,320.92x = 259,927.72 × 107,794.98
  4. Step 4: Simplify right side
    188,320.92x = 28,018,903,378.85
  5. Step 5: Solve for x
    x = 28,018,903,378.85/188,320.92
  6. Step 6: Final answer
    x = 148,782.74

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1.5x scale

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.