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Finding the Fourth Proportional to 114,749.91, 158,431.11 and 71,794.11

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Solution

The fourth proportional to 114,749.91, 158,431.11 and 71,794.11 is: 99,123.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,749.91 : 158,431.11 = 71,794.11 : x
  2. Step 2: Convert to fraction form
    114,749.91/158,431.11 = 71,794.11/x
  3. Step 3: Cross multiply
    114,749.91x = 158,431.11 × 71,794.11
  4. Step 4: Simplify right side
    114,749.91x = 11,374,420,538.76
  5. Step 5: Solve for x
    x = 11,374,420,538.76/114,749.91
  6. Step 6: Final answer
    x = 99,123.57

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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.