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Finding the Fourth Proportional to 146,645.70, 219,879.45 and 57,796.80

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Solution

The fourth proportional to 146,645.70, 219,879.45 and 57,796.80 is: 86,660.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,645.70 : 219,879.45 = 57,796.80 : x
  2. Step 2: Convert to fraction form
    146,645.70/219,879.45 = 57,796.80/x
  3. Step 3: Cross multiply
    146,645.70x = 219,879.45 × 57,796.80
  4. Step 4: Simplify right side
    146,645.70x = 12,708,328,595.76
  5. Step 5: Solve for x
    x = 12,708,328,595.76/146,645.70
  6. Step 6: Final answer
    x = 86,660.08

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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.