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Finding the Fourth Proportional to 119,693.60, 179,637.60 and 115,805.60

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Solution

The fourth proportional to 119,693.60, 179,637.60 and 115,805.60 is: 173,802.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,693.60 : 179,637.60 = 115,805.60 : x
  2. Step 2: Convert to fraction form
    119,693.60/179,637.60 = 115,805.60/x
  3. Step 3: Cross multiply
    119,693.60x = 179,637.60 × 115,805.60
  4. Step 4: Simplify right side
    119,693.60x = 20,803,040,050.56
  5. Step 5: Solve for x
    x = 20,803,040,050.56/119,693.60
  6. Step 6: Final answer
    x = 173,802.44

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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.