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Finding the Fourth Proportional to 235,207.80, 324,614.59 and 139,714.88

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Solution

The fourth proportional to 235,207.80, 324,614.59 and 139,714.88 is: 192,823.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,207.80 : 324,614.59 = 139,714.88 : x
  2. Step 2: Convert to fraction form
    235,207.80/324,614.59 = 139,714.88/x
  3. Step 3: Cross multiply
    235,207.80x = 324,614.59 × 139,714.88
  4. Step 4: Simplify right side
    235,207.80x = 45,353,486,515.74
  5. Step 5: Solve for x
    x = 45,353,486,515.74/235,207.80
  6. Step 6: Final answer
    x = 192,823.05

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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.