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Finding the Fourth Proportional to 255,713.76, 352,860.30 and 148,290.75

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Solution

The fourth proportional to 255,713.76, 352,860.30 and 148,290.75 is: 204,626.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,713.76 : 352,860.30 = 148,290.75 : x
  2. Step 2: Convert to fraction form
    255,713.76/352,860.30 = 148,290.75/x
  3. Step 3: Cross multiply
    255,713.76x = 352,860.30 × 148,290.75
  4. Step 4: Simplify right side
    255,713.76x = 52,325,918,532.23
  5. Step 5: Solve for x
    x = 52,325,918,532.23/255,713.76
  6. Step 6: Final answer
    x = 204,626.92

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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.