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Finding the Fourth Proportional to 269,311.51, 371,649.78 and 148,454.83

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Solution

The fourth proportional to 269,311.51, 371,649.78 and 148,454.83 is: 204,867.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,311.51 : 371,649.78 = 148,454.83 : x
  2. Step 2: Convert to fraction form
    269,311.51/371,649.78 = 148,454.83/x
  3. Step 3: Cross multiply
    269,311.51x = 371,649.78 × 148,454.83
  4. Step 4: Simplify right side
    269,311.51x = 55,173,203,051.19
  5. Step 5: Solve for x
    x = 55,173,203,051.19/269,311.51
  6. Step 6: Final answer
    x = 204,867.61

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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.