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Finding the Fourth Proportional to 192,740.88, 288,945.03 and 92,763.53

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Solution

The fourth proportional to 192,740.88, 288,945.03 and 92,763.53 is: 139,065.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,740.88 : 288,945.03 = 92,763.53 : x
  2. Step 2: Convert to fraction form
    192,740.88/288,945.03 = 92,763.53/x
  3. Step 3: Cross multiply
    192,740.88x = 288,945.03 × 92,763.53
  4. Step 4: Simplify right side
    192,740.88x = 26,803,559,514.03
  5. Step 5: Solve for x
    x = 26,803,559,514.03/192,740.88
  6. Step 6: Final answer
    x = 139,065.25

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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.