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Finding the Fourth Proportional to 235,291.91, 324,749.99 and 139,780.16

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Solution

The fourth proportional to 235,291.91, 324,749.99 and 139,780.16 is: 192,924.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,291.91 : 324,749.99 = 139,780.16 : x
  2. Step 2: Convert to fraction form
    235,291.91/324,749.99 = 139,780.16/x
  3. Step 3: Cross multiply
    235,291.91x = 324,749.99 × 139,780.16
  4. Step 4: Simplify right side
    235,291.91x = 45,393,605,562.20
  5. Step 5: Solve for x
    x = 45,393,605,562.20/235,291.91
  6. Step 6: Final answer
    x = 192,924.63

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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.