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Finding the Fourth Proportional to 185,881.80, 278,514.90 and 106,858.20

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Solution

The fourth proportional to 185,881.80, 278,514.90 and 106,858.20 is: 160,110.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,881.80 : 278,514.90 = 106,858.20 : x
  2. Step 2: Convert to fraction form
    185,881.80/278,514.90 = 106,858.20/x
  3. Step 3: Cross multiply
    185,881.80x = 278,514.90 × 106,858.20
  4. Step 4: Simplify right side
    185,881.80x = 29,761,600,887.18
  5. Step 5: Solve for x
    x = 29,761,600,887.18/185,881.80
  6. Step 6: Final answer
    x = 160,110.35

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1.5x scale

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.