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Finding the Fourth Proportional to 240,790.67, 332,290.29 and 138,815.64

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Solution

The fourth proportional to 240,790.67, 332,290.29 and 138,815.64 is: 191,565.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,790.67 : 332,290.29 = 138,815.64 : x
  2. Step 2: Convert to fraction form
    240,790.67/332,290.29 = 138,815.64/x
  3. Step 3: Cross multiply
    240,790.67x = 332,290.29 × 138,815.64
  4. Step 4: Simplify right side
    240,790.67x = 46,127,088,816.65
  5. Step 5: Solve for x
    x = 46,127,088,816.65/240,790.67
  6. Step 6: Final answer
    x = 191,565.10

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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.