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Finding the Fourth Proportional to 255,506.43, 352,520.80 and 148,055.70

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Solution

The fourth proportional to 255,506.43, 352,520.80 and 148,055.70 is: 204,271.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,506.43 : 352,520.80 = 148,055.70 : x
  2. Step 2: Convert to fraction form
    255,506.43/352,520.80 = 148,055.70/x
  3. Step 3: Cross multiply
    255,506.43x = 352,520.80 × 148,055.70
  4. Step 4: Simplify right side
    255,506.43x = 52,192,713,808.56
  5. Step 5: Solve for x
    x = 52,192,713,808.56/255,506.43
  6. Step 6: Final answer
    x = 204,271.63

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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.