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Finding the Fourth Proportional to 255,275.96, 352,288.92 and 140,566.64

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Solution

The fourth proportional to 255,275.96, 352,288.92 and 140,566.64 is: 193,986.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,275.96 : 352,288.92 = 140,566.64 : x
  2. Step 2: Convert to fraction form
    255,275.96/352,288.92 = 140,566.64/x
  3. Step 3: Cross multiply
    255,275.96x = 352,288.92 × 140,566.64
  4. Step 4: Simplify right side
    255,275.96x = 49,520,069,793.63
  5. Step 5: Solve for x
    x = 49,520,069,793.63/255,275.96
  6. Step 6: Final answer
    x = 193,986.42

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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.