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Finding the Fourth Proportional to 115,748.80, 173,632.80 and 36,860.80

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Solution

The fourth proportional to 115,748.80, 173,632.80 and 36,860.80 is: 55,294.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,748.80 : 173,632.80 = 36,860.80 : x
  2. Step 2: Convert to fraction form
    115,748.80/173,632.80 = 36,860.80/x
  3. Step 3: Cross multiply
    115,748.80x = 173,632.80 × 36,860.80
  4. Step 4: Simplify right side
    115,748.80x = 6,400,243,914.24
  5. Step 5: Solve for x
    x = 6,400,243,914.24/115,748.80
  6. Step 6: Final answer
    x = 55,294.26

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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.