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Finding the Fourth Proportional to 115,814.40, 173,786.40 and 49,243.20

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Solution

The fourth proportional to 115,814.40, 173,786.40 and 49,243.20 is: 73,892.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,814.40 : 173,786.40 = 49,243.20 : x
  2. Step 2: Convert to fraction form
    115,814.40/173,786.40 = 49,243.20/x
  3. Step 3: Cross multiply
    115,814.40x = 173,786.40 × 49,243.20
  4. Step 4: Simplify right side
    115,814.40x = 8,557,798,452.48
  5. Step 5: Solve for x
    x = 8,557,798,452.48/115,814.40
  6. Step 6: Final answer
    x = 73,892.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.