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Finding the Fourth Proportional to 255,620.46, 352,782.46 and 153,679.12

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Solution

The fourth proportional to 255,620.46, 352,782.46 and 153,679.12 is: 212,092.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,620.46 : 352,782.46 = 153,679.12 : x
  2. Step 2: Convert to fraction form
    255,620.46/352,782.46 = 153,679.12/x
  3. Step 3: Cross multiply
    255,620.46x = 352,782.46 × 153,679.12
  4. Step 4: Simplify right side
    255,620.46x = 54,215,298,004.24
  5. Step 5: Solve for x
    x = 54,215,298,004.24/255,620.46
  6. Step 6: Final answer
    x = 212,092.95

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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.