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Finding the Fourth Proportional to 116,396.30, 160,614.93 and 65,400.93

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Solution

The fourth proportional to 116,396.30, 160,614.93 and 65,400.93 is: 90,246.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,396.30 : 160,614.93 = 65,400.93 : x
  2. Step 2: Convert to fraction form
    116,396.30/160,614.93 = 65,400.93/x
  3. Step 3: Cross multiply
    116,396.30x = 160,614.93 × 65,400.93
  4. Step 4: Simplify right side
    116,396.30x = 10,504,365,793.88
  5. Step 5: Solve for x
    x = 10,504,365,793.88/116,396.30
  6. Step 6: Final answer
    x = 90,246.56

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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.