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Finding the Fourth Proportional to 115,882.40, 173,842.80 and 49,354.40

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Solution

The fourth proportional to 115,882.40, 173,842.80 and 49,354.40 is: 74,039.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,882.40 : 173,842.80 = 49,354.40 : x
  2. Step 2: Convert to fraction form
    115,882.40/173,842.80 = 49,354.40/x
  3. Step 3: Cross multiply
    115,882.40x = 173,842.80 × 49,354.40
  4. Step 4: Simplify right side
    115,882.40x = 8,579,907,088.32
  5. Step 5: Solve for x
    x = 8,579,907,088.32/115,882.40
  6. Step 6: Final answer
    x = 74,039.78

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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.