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Finding the Fourth Proportional to 225,870.48, 338,758.20 and 145,668.24

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Solution

The fourth proportional to 225,870.48, 338,758.20 and 145,668.24 is: 218,471.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,870.48 : 338,758.20 = 145,668.24 : x
  2. Step 2: Convert to fraction form
    225,870.48/338,758.20 = 145,668.24/x
  3. Step 3: Cross multiply
    225,870.48x = 338,758.20 × 145,668.24
  4. Step 4: Simplify right side
    225,870.48x = 49,346,310,779.57
  5. Step 5: Solve for x
    x = 49,346,310,779.57/225,870.48
  6. Step 6: Final answer
    x = 218,471.71

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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.