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Finding the Fourth Proportional to 115,575.20, 173,362.80 and 115,575.20

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Solution

The fourth proportional to 115,575.20, 173,362.80 and 115,575.20 is: 173,362.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,575.20 : 173,362.80 = 115,575.20 : x
  2. Step 2: Convert to fraction form
    115,575.20/173,362.80 = 115,575.20/x
  3. Step 3: Cross multiply
    115,575.20x = 173,362.80 × 115,575.20
  4. Step 4: Simplify right side
    115,575.20x = 20,036,440,282.56
  5. Step 5: Solve for x
    x = 20,036,440,282.56/115,575.20
  6. Step 6: Final answer
    x = 173,362.80

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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.