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Finding the Fourth Proportional to 253,216.32, 349,432.56 and 140,036.64

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Solution

The fourth proportional to 253,216.32, 349,432.56 and 140,036.64 is: 193,247.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,216.32 : 349,432.56 = 140,036.64 : x
  2. Step 2: Convert to fraction form
    253,216.32/349,432.56 = 140,036.64/x
  3. Step 3: Cross multiply
    253,216.32x = 349,432.56 × 140,036.64
  4. Step 4: Simplify right side
    253,216.32x = 48,933,361,609.00
  5. Step 5: Solve for x
    x = 48,933,361,609.00/253,216.32
  6. Step 6: Final answer
    x = 193,247.27

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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.